I wanted to remove an application from Windows XP Professional. When I opened the Add/Remove option in Control Panel it listed all the installed programmes but didn't give me the choice of uninstalling the application I wanted to remove. It only showed me the size of the applications and the frequency with which I had been using them.

Any idea how to get Add/Remove working properly again?

Not all installed programs install in a manner that Windows Add/Remove can uninstall them. Look in the application's folder and see if there is an uninstall utility.

If not, check the internet for an uninstaller for that application.

I have problem uninstalling jacs paint shop pro .01 from my computer, every time I try, I get the message (cannot open install log.) please help me.
Thank you

Well, version ONE is pretty dog-gone old!

At this point I would just delete the PSP folder from Program Files and then use a cleanup program to fix the stuff left behind in the registry. I'd recommend CCLeaner:

Download CCleaner 2.15.815 - FileHippo.com

The download link is on the right hand side of the screen.