Renaming or moving directories that are already created and being used is a bad idea. It would create too many complications.
Your best option would be to uninstall your current program, then do a "custom" reinstall, whereas you'd tell the computer where to install it and modify the folder name.
As for moving "special folders", you should download Tweak UI:
http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx
download > install > open > exand My Computer > Special Folders > I see things like My Pictures and My Music listed there, but I don't see My Games.
Your best option would be to uninstall your current program, then do a "custom" reinstall, whereas you'd tell the computer where to install it and modify the folder name.
As for moving "special folders", you should download Tweak UI:
http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx
download > install > open > exand My Computer > Special Folders > I see things like My Pictures and My Music listed there, but I don't see My Games.