Why don't you go to HP's website and view which drivers are available for your computer model. HP will list all the drivers for the particular model you have.
Your computer model does NOT show any Windows 7 drivers available at HP's website. You CAN use Vista drivers, most people have not had any issues when doing this because basically Windows 7 is an improved Vista.
Go
HERE for the drivers page.
Then download the drivers for either the 32 bit or 64 bit version of Windows 7 you're going to install. Save them to a thumb flash drive or a CD-RW disc.
Always download the latest version of the drivers, those with the most current date shown.