You should have just run the Vista install that came with the machine. Vista gets much more flack than it deserves, a large portion of it from people trying to run it on excessively old hardware. It runs just fine on every system I've installed it on that is less than 5-6 years old.
... though his invention worked superbly -- his theory was a crock of sewage from beginning to end. -- Vernor Vinge, "The Peace War"