Upgrades are odd things !
But maybe you have to scroll down a long way to see the other programs - try it.
There's a fix here: http://www.kellys-korner-xp.com/xp_a.htm under "Add or Remove
- White Space".
Alternatively pour a large beer and read through this: http://groups.google.com/group/microsoft.public.windowsxp.general/browse_thread/thread/b7b3217241d66c6/c5d9c5615263e10b%23c5d9c5615263e10b?pli=1