HP printer installation not working with Windows Vista

I thought I was getting a great deal buying a very discounted HP LaserJet P2015(I guess this is not one of the lastest models). However, I have found throught some research that the installation disk isn't supported by my Windows Vista Home Premium desktop (Gateway 5404). Wish I knew about this headache before I bought it. I'm a computer novice, but know how to follow directions. I did find on the HP website a driver that I downloaded. No luck, the installation of the printer "fails". I get this message....windows found driver software for your device but encountered an error while attempting to install it. HP LaserJet P2015 Series PCL6. The extednded attributes is inconsistent. Check support section for driver software...how can I get this printer up and running? Seems like Vista isn't so user friendly.