I have tried several times to uninstall JKA,and it refuses to do so.When I use Add or Remove Programs,I remove it but it's still in the Add or Remove Programs.It also is listed in my LucasArts Folder,and only the Uninstall Program is there.But,when I try to uninstall via Uninstall Program from LucasArts Folder,it finishes and nothing happens.Can someone help me please?

Try reinstalling it and then uninstalling it. If there is no option to 'Install' when you put in CD1, use explorer to navigate the disc and find the file setup.exe (you might not see the .exe depending on how your Windows is set up) it should be inside the folder Gamedata on your CD. run that setup file and install it. Then uninstall the program using the uninstaller.