stupid lame newbie question

hello there,
i never used crystal report before, and the help on this topic provided with vs.net is confusing for me.

i created a report using the wizard, i added the report and also a CRviewer to my form and i just don't know where to get started, how do i display the report?
i set property
crviewer1.reportsource = myreport

what do i do next ?

Here is an example from one of my systems.

This code calls the viewer:

glbReportForm = "frmKO"
CRViewer.Show vbModal

In the formload event of the viewer :

Private Sub Form_Load()
Select Case glbReportForm
Case "frmKO"
CRViewer91.ReportSource = frmKO.Report
case....
end select

SCREEN.MousePointer = 0
CRViewer91.ViewReport
End Sub

thanks,
some questions :
where goes this code ?

glbReportForm = "frmKO"
CRViewer.Show vbModal

and is this vb.net code? because it looks like vb 6 to me,
i didn't mention i use vb.net

also if this is vb.net what type is frmKO ?