|The network manager does not detect my wireless network card.|
Ok, that would be the problem then. However, I have no experience with Fedora so I can't be of much help.
If you're sure it works (ie: the wireless interface worked under windows or another version of Linux) then you might try grabbing updated Linux drivers for it and loading them.
You may want to post this query in the Linux forum as well for more assistance than I can give.