You shouldn't need to download any drivers. Just put it in and install the software.
http://h10025.www1.hp.com/ewfrf/wc/d...cname=lpg40238
http://h10025.www1.hp.com/ewfrf/wc/s...tem=dv-17458-1
http://h10025.www1.hp.com/ewfrf/wc/s...tem=dv-22067-1
I saw the page for ordering the CD, but I'm not convinced you need it. If I'm wrong, and it does need a driver that HP would force you to order the CD for, then try Google if no one here has it.