i read up on the site faqs and u should be able to do the get it now option throughout the bidding even if someone has bid on it. it just has to be a minimum of 2000 credits and maximum of i think what ever you want it to be. but from what i was reading it takes 50 of your credits to do the get it now option.
you can to www.nvidia.com and the website has under support and drivers.. scan your pc! and have u download the driver! for people running like window xp!