I'd bet alot of money they don't even make the PNY Nvidia 7600 512MB in PCI, and your old puter probably didnt have a PCIE slot. I dont think they tried to screw you, they guy was probably confused by you asking for that card in PCI or PCIE when you didnt have a PCIE motherboard.
1987 Nissan pick up-wrecked
1984 Ponitiac grand am-sold
1988 Buick lasabre-sold
1987 Nissan 300zx-sold intake/exhaust
2001 Yamaha r6-sold slip on
2004 Yamaha r1-sold full exhaust
1991 Nissan 240sx-torn down,almost built up.
1994 toyota celica-blown up. exhaust
2005 Honda accord-daily.