I have a verizon wireless router that use to take a PC air card, but I didn't pay for the use, it was set up through my former employer. I need to get service now using the router and don't know how or what to buy as far as the PC card or the wireless usb modem (I am not very saavy on this stuf).

Bring the router into your local verizon store, Best Buy, Staples or the like and they will tell you what card you need. It is possible, however, that they no longer make a card to fit. Since most are now USB.