Home of the Ultimate Xbox 360 Modding Tool, Horizon. XboxMB.com is a community of Xbox 360 gamers and modders who share Tutorials, News, Reviews, and other resources. Xbox Message Boards is free to sign up and use, so what are you waiting for? Register Now!
If you don't have Diamond PLEASE buy it! Its the best thing to get! You get tons of Modding Tools for Horizon (The Best Modding Tool Out There) And its easy, noob friendly modding!
There is also a Diamond section in the forums if you would rather not use Horizon. Also you are supporting XboxMB wen you buy it.