Did the wireless card ever work? If it did work I would check to see if there's a physical switch on the laptop. Try switching it off then on. I would also try a different driver. Sometimes I've used an older or newer driver to get a wireless card to work. So if the driver that's installed is for Vista I would try obtaining one for Win 7. You could also try a wireless driver fro XP 64bit. I've found that some Manufacture's Web sites have several drivers listed for "network card" you could have a installed a "network card driver from HP's site but it might not be the correct version or manufacturer. From HP's site I don't see Win7 listed as an option. So you could have an incompatible driver installed. http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?cc=us&lc=en&product=3376893
One other item to check. If you had Vista 32bit installed originally then went to Win 7 64bit you could try the Vista 64bit driver.
If all else fails you could purchase a USB wireless device to make your laptop wireless again. I picked up a Trendent http://www.techpartswarehouse.com/product/TN-TBW107UB-TRENDnet-Micro-Bluetooth-USB-Adapter-5600.cfm?sid=google&gclid=COGH5NyNv7oCFe1aMgod93wAuA
Answers & Comments
Did the wireless card ever work? If it did work I would check to see if there's a physical switch on the laptop. Try switching it off then on. I would also try a different driver. Sometimes I've used an older or newer driver to get a wireless card to work. So if the driver that's installed is for Vista I would try obtaining one for Win 7. You could also try a wireless driver fro XP 64bit. I've found that some Manufacture's Web sites have several drivers listed for "network card" you could have a installed a "network card driver from HP's site but it might not be the correct version or manufacturer. From HP's site I don't see Win7 listed as an option. So you could have an incompatible driver installed. http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?cc=us&lc=en&product=3376893
One other item to check. If you had Vista 32bit installed originally then went to Win 7 64bit you could try the Vista 64bit driver.
If all else fails you could purchase a USB wireless device to make your laptop wireless again. I picked up a Trendent
http://www.techpartswarehouse.com/product/TN-TBW107UB-TRENDnet-Micro-Bluetooth-USB-Adapter-5600.cfm?sid=google&gclid=COGH5NyNv7oCFe1aMgod93wAuA
Let me know if you have any other questions?
Brian