Try this one kompas.info.pl/ it works with vista and is about the best one out there as my wife uses it for her scientific translations, and it is only 100zl to own.
However using these, you will only get a gist of the translation (about 50-60%) and then you have to fill in the blanks.
We used to use English Translator XT Professional but its a pain in the ass and unstable.
Torrent address is here torrenty.org/torrent/161639
did you try e-mailing microsoft about your problem, or getting someone to have a look at it for you? if your computer is still on warranty you can ring the shop you bought it from and ask them if they could help you, they shouldnt charge you.
Hehe Dear Mr Gates, I have just downloaded an illegal program and it will not work on your operating system, can you advise me what to do? :O)