Is the Bluetooth working? If it is, then I think it's pretty safe to assume that it's plugged in and seated properly.
Another thing to check would be BIOS to make sure that the card is enabled.
I replugged it in and made sure it was secure and POW! the wireless now works but I'm not sure how to get the bluetooth working? It is not working. I made sure the antennas were snapped onto the card and I'm not sure if there is a process to do but whenever I click on set up bluetooth mouse in system preferences, it doesn't find my mouse which I just put new batteries in and same goes for my keyboard. Any ideas?