FF has a new patch set to come out soon. It has some intresting changes to it.
Soldier: RPG damage radius increased to more TFC-like. RPG reload time decreased slightly. Nail gren code has been rewritten: they now own SGs again, and use much less server resources to use
Yes, it does. Simply install it as you did before you upgraded. It will run in 32bit mode, but at least it runs. You can reinstall your configs if you saved them by just over-writing the default ones.