I wanted a few more buttons on the Programs page so I looked in the registry under HKLM>Software>HTC>Manila>ProgramLauncher and saw that there were 18 keys, numbered 0-17.  So I added a new key and then duplicated the entries from another key and then did a soft reset.
Lo and behold, when I go to the Programs page, there is now a new empty button!  So far so good.  I selected this button which brought up the list of available apps and I chose one for the button.  But back on the programs tab, the button is still blank! 
 
When I look at the registry entries for this button, it has the proper values, but the button is blank and will not execute the app.
Can anyone suggest where else I might need to look to add an entry to the Programs page?  Is it possible to add a second page of program shortcuts?
Thanks,
Chris