What you will need:
-Title Update 7 + default_mp.xex
-TU7 DW LINK 3 MediaFire
-TU7 DW Link 2
-A Transfer Cable or the Xport 360 HDD Port, or even a USB key (what I used)
-Some JTAG knowledge
-Xport 360 (Only is your using your Transfer Cable)


When you have downloaded the files, you will need to:

1)Download the files, obviously
2)Open Xport 360 or USB Key (FAT32)
3)If your in Xport 360, put the TU7 in the Partition 3/Cache folder, then put the default_mp.xex in the MW2 game folder
4)If your with a USB key, put the modded files on it, plug the USB into your JTAG, go to the XeXMenu, and put the TU7 in the Cache folder of your HDD, then put the default_mp.xex in your MW2 game folder
5)If you have done all this correctly, you should be able to join your JTAG with you Retail Xbox 360
6)Now go make some TU7 patches