Ok, so i successfully jtagged another xbox for a customer, and he said he will pay me a little extra to have everything set up for mw2 system link lobbies. So i installed mw2 to the external hdd he bought, and copied a patch into the mw2 files. The problem i am having is when the patch is inserted, and i run the default_mp.xex file to test it tells me the disk is unreadable!!! So i did a little research and found out i need to copy and paste a modded default_mp.xex and a codepost file, but here is my question, i have read a tut on this site and the guy said to make sure everything is updated and matches the title update i have in my catche folder! How do i know what title update i have and how do i find matching default_mp.xex and codepost/patch files. The title update i have currently installed is a 00000000G00000000 file. + 200 rep for the solution to my problem.