2 PCI wireless cards - neither will work

My old laptop died, so I bought a "new" one at a yard sale (HP Pavilion ZE5300) - 10 years old . Got it running pretty good after I cleaned a bunch of crap off and out of it.

Unfortunately, it doesn't have a wireless antenna . It came with a Netgear PCI wireless card - which the seller said didn't work, and I had a 2Wire one that was never used.

I can't get EITHER one to work - DL'd drivers for each one, etc. but neither one will even light up. Either something (firewall/antivirus?) is blocking them from working, which is what some of my research indicates, or the slot is bad.

Any ideas? Thanks!