Hi. Here is a few command I had to use recently to get my wireles up and running and maybe they can help you too.
First you need to see if your wireless card is up and running so please do the following from a command line:
this is the same as ipconfig as it will tell you if you have a card (probably wlan0 or 1 typically, sometimes eth1 (as eth0 should be your built-in nic)).
See if you have an ip. To make sure your card is up you can do ifconfig wlan0 up
(you can substitute wlan"x" for whatever you are shown)
now you can use "iwlist wlan0 scanning" to scan the networks around you.
to configure your wireless card you need to do 3 things (all of which you may have already done of FC may have done for you). This is mainly to setup your card, do dhcp, etc.
You will need ifconfig to turn the card up and assign a static ip if you are not doing a dhcp. You use dhclient to obtain a dhcp address. You use iwconfig to setup your card.
I recommend that you follow gthill suggestion to do a little reading on those manual (help) pages.
The stuff I put in ( ) are just descriptions so dont type the commands
iwconfig (to see any wireless cards you have listed, lets assume you do see wlan0)
iwconfig wlan0 essid <ESSID> (where essid is the name of your wireless network)
iwconfig wlan0 ap <AP> (where <AP> is the mac address of your access point, may not be needed if you are broadcasting).
iwconfig wlan0 key <open or another setting, see manual page> <wep key> (if using wep)
iwconfig wlan0 <managed> (may not be needed)
turn up the interface:
ifconfig wlan0 up
get an address:
to manually assign an ip:
ifconfig wlan0 <ip> netmask <subnet mask>
and if you need to setup a gateway you can do it with the route command.
Here is a great site for commands if you in a windows pc and need to look them up and do not have access to a linux pc.
Hope all this helps. Also I've only worked this for a little over a week so please to defer to those who have been here longer.