Upgraded to Vista???? What were you on before? That was a waste as Vista hasn't been supported for a couple years now, so there is no support from companies for it any more. That computer is from 2005 NEARLY TEN YEARS OLD. You are seriously wasting your time on that, there is no support, parts are not made, much less they might not even list the drivers for it since it is so old.
Please for heavens sake, go to Walmart, $249 for a i3 Core Laptop, and you will be amazed at how much of a difference it is, PLUS is supported with a warranty for the next year if anything goes wrong and next three years if there is a failure of any sort.