Situation may be similar to mine. Please see thread of I deleted phone apps - please help
I did javaloader wipe, uninstall the DestopManager, delete ReserchInMotion folder, delete ReserchInMotion registries(*), restart PC, reinstall DestopManager, reinstall handheld OS, then all recovered.
(*)The point was registry. I used regedit command and deleted My Computer\HKEY_CURRENT_USER\Software\Reserch In Motion
Hope it helps.