imac woes

i have an imac that does not have airport. i would like to connect to the wireless router i have connected to my pc. i have a novatel usb card but need some expert help. cant figure out how to get it all to work. help.

G;day and welcome to the forums.

Helps enormously if you provide fill details as to computer, operating system and model of the USB card. perhaps it is one of these:-


Novatel Wireless MiFi® 2372

http://www.novatelwireless.com/index.php?option=com_content&view=article&id=110

the imac specs are-osx 10.5.8 processor 1.8 ghz g5. 2 gb ram. card is netopia tergusb/n.