How to Uninstall older version of Final Cut and Motion

Hello

I have a older academic version of Final Cut and Motion. I ordered a Full blown version of Final Cut Studio 2 that should arrive this week. How do I uninstall my old version of software? I don't want them conflicting with the new version.

My other question deals with performance. I'm running a Dual 2.5GHz G5 with 6G of ram. Video Board is the ATI x800XT. Will this system work for editing HDV or am I going to need to buy a new Intel based computer? I really don't want to spend 4K for a new system.

Thanks

Bob M