Re: just loaded ubuntu.
The newest ubuntu release (7.10) supports plug and play for most wireless internet cards. You should be able to simply click the wireless internet icon at the top right and connect. If this doesn't work, I would recommend going on the ubuntu forums and asking for help.
By the way, I have been using ubuntu and I LOVE it.
My Current PC-
Intel Q6600 G0 |Western Digital 250gb HD
Seagate 500gb HD | Western Digital 500gb HD | VisionTek HD4870 | 4gb Cruical Ballistix Tracer DDR2 800
850w Thermaltake PSU | Cooler Master Centurian 590 | 2x Dell 22" LCD
-900HA EEE pc