How do I find the WEP Key for my wireless router WRT54G2

[JDo]

Trying to hook up my kids PS3. Where do I find the WEP Key? Thanks!!

[castor]

Click on the Wireless tab on the Setup page- Here Wireless Network mode
should be mixed- Provide any non linksys network name ....
Name (SSID) box- Set wireless channel to 11- And wireless SSID
broadcast should be Enabled and then click on "Save Settings" >>Now
Click on the Sub tab under wireless > "Wireless Security" Change the
Wireless security mode to "WEP/WPA"...have a note of the key ... click save settings ...