There are several things you can try to see if your card is loaded. First off, you can enter
This will list the modules that are loaded in the kernel. You should look for an entry called rt2500. If it's not there, you can try the following commands.
modprobe -i rt2500
Assuming you've got the module somewhere, these two commands should configure and load the rt2500 module necessary to run the card (btw, you can think of modules as drivers if you're familiar with windows). Then, go and edit the file modprobe.conf using this command.
Add a line which says alias wlan0 rt2500
. Then modify the ifplugd.conf file using this.
Find the line where it says INTERFACES="eth0"
and replace it with INTERFACES="eth0 wlan0"
. Then entering the following command should initialize the wlan0 interface.
service ifplugd restart
Then, if all this works, you can use the gui tools at your disposal in VL to enter the information for your access point. If you want to use wifi-radar which is really nifty, you'll probably have to modify the following file.
Find the line where it says interface =
and just add wlan0 (it might already be configured correctly, but better check in case it doesn't work). If you have any problems, please let me know and I'll try to help.