Spring RTS Engine

i just downloaded TA spring and when i try to join a room it said i need a new mod. i click yes to download it but its a dead link.what mod do i need and where can i get it?
thankx for any help.

You need the mod that's displayed in the mod column for the host and it can be downloaded at http://spring.unknown-files.net/category/14/Mods/

If you look carefully on the page Tobi linked you to, there is a box labelled "Quick Search". It has given excellent result to me so far.

There's a few mods that are not hosted by http://spring.unknown-files.net/ however. Do you remember the mod name?

People sometimes use the lobby as a convenient way to run some quick test on mods they're working on, but haven't released yet.