Make sure tha t for prog's that are only to be attached to one user or two, remove them from the "All Users" startup folder and put them in the startups of the users who need them. There may be some issues with progs sho used registry keys instaed of shortcuts in startup folders. You may need to remove keys from the "run" folder in the registry and make startup shortcuts for the appropriate users.
May take some time, but it will do what you want with the least work really.
-DPF