Hi again Rick,
Just a quick follow up because I noticed your history and that you have used the now obsolete suite "RadControls for ASP.NET Classic" before 2009.
When the controls were rewritten to use the MS AJAX framework (thus resulting in the current suite and architecture), this had to cause a number of changes, so you may actually need to go through your code and implement things with the current codebase.
Some controls have articles like this one: Migrating From RadDock ASP.NET To ASP.NET AJAX and you can browse the tree on the left for the others that you use. They may help you in the migration process. For issues not covered in those articles, I advise that you review the rest of the control documentation and demos to see how to implement the desired functionality.
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and share your thoughts.