[How to]XBL Games Hacking [XAP] [HELP]

Greetings!
I have just found this great forum.
I know I could find all XBL games cracked here, but the new ones don't seem to appear!

I want to ask for help.
I can basically patch/crack any game or app which have normal protection (non-XBL)
I, however, cannot deal with the XBL, as they simply crash after I patch them the normal (upper) way.
I first thought you need to remove everything associated with XBOX in the XAP, but I found out it's wrong.
Any help will be well appreciated!

EDIT: I found it possible to play the game in the emulator just by unsigning it and patching the trial mode.
But when I try this on my phone, it simply starts and closes after a millisecond.