Ubuntu is as good a choice as any.
A quick Google search shows me that your netbook has a Broadcom wireless card. These cards are very popular and should work in any Linux distro you choose; all you need to do is download and install the Broadcom STA driver. It is a quick (5 minutes) and painless procedure, but you'll need to temporarily plug your netbook into a wired (ethernet) internet connection.
Instructions for Ubuntu here:
(be sure to follow instructions for "b43/STA hybrid" and not "b43.")