1.Start your Starsiege: Tribes 1 client.
2.Open the Network section under the Options area
3.Then click add at the bottom
4.Now enter a name, call it anything you like
5.Then enter the Address:
t1m1.pu.net:280006.Click Done at the bottom
Click back on the play tab. Once on the server list page, click REFRESH ALL and the server list should show up.