Looks like the NV4_mini.sys file isn't in the driver set you downloaded. Make sure you download the driver for your notebook listed on the HP website. There are 4 Pavilion dv9000 models.
dv9000 CTO:
http://h10025.www1.hp.com/ewfrf/wc/s...oduct=1842189&
dv9000ea:
http://h10025.www1.hp.com/ewfrf/wc/s...3308899&lang=&
dv9000t CTO:
http://h10025.www1.hp.com/ewfrf/wc/s...3224058&lang=&
dv9000z CTO:
http://h10025.www1.hp.com/ewfrf/wc/s...3224049&lang=&