What isnt mentioned in the tutorial is the adding of emblems and league logos etc. Kees explained this in a Pm he sent me. Here is a run-down -
1. Download Pc compat file, League logos, emblems or whatever you fancy, then save to desktop or wherevr.
2. Then open single bin file in GGS. Save and export PNGS individually. Pc bin files WILL NOT load into the 360 iso, although i have noticed ball pack textures do.
3. Open original ISO and find corresponding bin file. Right click image ---> open----> find edited logo and click open. Hold right click then drag and drop onto original image.
4. Bang, your logo, emblem etc will now be edited.
I have edited all my emblems and logos this way, havent started on the kits yet though... Adding ball packs is dead easy, going to try add-boards next.
I suggest having two ISos so you can just play around with one and test which files will add automatically.
Hope this helps a bit as it helped me. Good luck!