We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
There are about 1,500 threads in regards to mods on the 360... as Stardust mentioned, there are no mods available for the 360 version. Attempting to install any mods would require outside means which could result in your Xbox Live account being banned.