Many sites Will provide a bunch of code. Paste the code into Wordpad and save it as "Name of map.smo". Start up Sumotori, click "Play mod" and your map.
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No, you cannot install mods on the 360. You need the ps3 or PC versions to install and use UT3 mods.
Google for Modstallation. You can use that software to install mods.
Check out the link below for a guide of how to install mods in Minecraft.
It might not be out yet but it should be. You have to download and install forge then you can install mods by going to .minecraft/mods and adding a mod there.
The Server has to install the mods Not You.
it allows you to play the full game of sumotori
loongkee
You can't
no
Easy
Just to let you know you can only get mods on the PC version