I'm getting the error "Invalid type: CloneClassAttendance" in test code bolded below.
We're supposed to go live tomorrow morning and I'm stuck... don't mean to sound too desperate... but I am :(
Thanks, Michele

Here's the test code:
@isTest
private class CloneClassAttendanceTest {
//CloneClassAttendance myTest = new CloneClassAttendance();
//Public CloneClassAttendance(){}
// above line gives error  Invalid constructor name:
    static testMethod void myUnitTest() {   
        // Add test contact
        Contact c = new Contact(LastName='Test');
        insert c;
        // Add test campaign
        Campaign cp = new Campaign(Name='TestCampaign');
        insert cp;
        // Add campaign member status
        CampaignMemberStatus cms = new CampaignMemberStatus( CampaignId = cp.Id, Label = 'Attended', SortOrder = 3);
        insert cms;
        // Add campaign member
        CampaignMember cm = new CampaignMember( CampaignId = cp.Id, Status = 'Attended', ContactId = c.Id);
        insert cm;
     
         //Page reference change VF_PageName with the name of your visualforce page
         PageReference cloneAttendance = Page.CloneClassAttendance;
         //Set the current page
        Test.setCurrentPage(cloneAttendance);
         //Set the id param on the page to the campaign id
         ApexPages.currentPage().getParameters().put('id', cp.Id);
         //Instantiate standard controller with the campaign record
         ApexPages.StandardController s = new ApexPages.StandardController(cp);
         //Instantiate extension class passing the standard controller
         //Line below gives error: Invalid type: CloneClassAttendance       
         CloneClassAttendance cca = new CloneClassAttendance(s);
         //Call your extensions methods here...
         cca.InsertRecord();
    }
}

Here's the Apex code I'm trying to test:
public class CloneClassAttendance
{
    private final Campaign theCampaign;

    public CloneClassAttendance( ApexPages.StandardController stdController )
    {
        theCampaign = (Campaign)stdController.getRecord();
    }

    //  returns the day-of-week for the given date in 2001 - 2099
    //  this works because 2001 started on a Monday
    //  0 = Sunday, ... 6 = Saturday
    private static Integer dayOfWeek( Date theDate )
    {
        Integer theYear = theDate.year() - 2001;
        return Math.mod( theYear + theYear/4 + theDate.dayOfYear(), 7 );
    }

    public void insertRecord()
    {
        Map<Date,Campaign> map_newCampaigns = new Map<Date,Campaign>();

        Date newDate = theCampaign.CloneStart__c;
        while ( newDate <= theCampaign.CloneEnd__c )
        {
            map_newCampaigns.put
            (   newDate,
                new Campaign
                (   Type                = 'Class Attendance',
                    IsActive            = true,
                    StartDate           = newDate,
                    EndDate             = newDate,
                    ParentId            = theCampaign.Id,
                    Name                = theCampaign.Name + '-' + newDate.format(),
                    Description         = theCampaign.Description,
                    Teacher__c          = theCampaign.Teacher__c,
                    Day_of_Week__c      = theCampaign.Day_of_Week__c,
                    Hours_Per_Class__c  = theCampaign.Hours_Per_Class__c,
                    Location__c         = theCampaign.Location__c,
                    Start_Time__c       = theCampaign.Start_Time__c,
                    End_Time__c         = theCampaign.End_Time__c,
                    Waitlist__c         = theCampaign.Waitlist__c,
                    Max_Capacity__c     = theCampaign.Max_Capacity__c,
                    Status              = 'Completed'
                )
            );
            newDate = newDate.addDays( 7 );
        }
        insert map_newCampaigns.values();

        List<CampaignMemberStatus>  list_newCampaignMemberStatus    = new List<CampaignMemberStatus>();
        List<CampaignMember>        list_newCampaignMembers         = new List<CampaignMember>();

        newDate = theCampaign.CloneStart__c;  
        while ( newDate <= theCampaign.CloneEnd__c )
        {
            Campaign newCampaign = map_newCampaigns.get( newDate );

            for ( CampaignMemberStatus status :
                [   SELECT  Id, HasResponded, IsDefault, Label, SortOrder
                    FROM    CampaignMemberStatus
                    WHERE   (   CampaignId = :theCampaign.Id
                            AND IsDeleted = false
                            )
                ]
                )
            {

                list_newCampaignMemberStatus.add
                (   new CampaignMemberStatus
                    (   CampaignId      = newCampaign.Id,
                        HasResponded    = status.HasResponded,
                        IsDefault       = status.IsDefault,
                        Label           = status.Label,
// the following line is a workaround due to the fact that when the campaign is cloned it automatically
// add CampaignMemberStatus of Sent and Received with sortorder 1 and 2. This was creating a duplicate bug.
                        SortOrder       = status.SortOrder +2
                    )
                );
System.debug( 'CampaignMemberStatus: CampaignId= ' + newCampaign.Id +' Label = ' + status.Label + ', SortOrder = ' + status.SortOrder );
            }

            for ( CampaignMember member :
                [   SELECT  Id, ContactId, Status
                    FROM    CampaignMember
                    WHERE   CampaignId = :theCampaign.Id
                ]
                )
            {
                list_newCampaignMembers.add
                (   new CampaignMember
                    (   CampaignId      = newCampaign.Id,
                        ContactId       = member.ContactId,
                        Status          = member.Status
                    )
                );
            }

            newDate = newDate.addDays( 7 );
        }

        insert list_newCampaignMemberStatus;
        insert list_newCampaignMembers;
    }
}

Here's the Visual Force page:
<apex:page standardController="Campaign" extensions="CloneClassAttendance" action="{!insertRecord}">
  <h1>Cloning Attendance</h1>
  <p> Class name is {! campaign.name} </p>
  <p> Class id is:   {! campaign.id} </p>
  <p> Class start date is:   {! campaign.startdate} </p>
  <p> Class end date is:   {! campaign.enddate} </p>
  <p> Next week is: {! campaign.startdate+7} </p>
  <p> Class Status is {! campaign.status} </p>
  <p> Class teacher is {! campaign.teacher__c} </p>
  <p> Class DOW is {! campaign.Day_of_Week__c} </p>
  <p> Class Hours_Per_Class__c is {! campaign.Hours_Per_Class__c} </p>
  <p> Class Location is {! campaign.Location__c} </p>
  <p> Class Start time is {! campaign.Start_Time__c} </p>
  <p> Class End time is {! campaign.End_Time__c} </p>
  <p> Class Description is {! campaign.Description} </p>
  <p> Class Waitlist is {! campaign.Waitlist__c} </p>
  <p> Class Max_Capacity is {! campaign.Max_Capacity__c} </p>
  <p> Clone start date is:   {! campaign.clonestart__c} </p>
  <p> Class end date is:   {! campaign.cloneend__c} </p>
</apex:page>