It uses the madwifi driver (it has the atheros chipset, or at least the rev. B does) and you will need the "wireless-tools" package.
You will probably have to put in your ESSID, WEP key, and then run dhcp for it. You can use this:
Code:
iwconfig ath0 essid whateveryouressidis
iwconfig ath0 key whateveryourkeyis
dhcpcd ath0 (or whatever dhcp client you use)
Depending on your distro, you will have to find out where to put the startup config. In gentoo, it is in /etc/conf.d/wireless.
The gentoo wiki has a great how-to for this if you use Gentoo. For other distro's just check their forums or wikis.