I converted the Red Bull Arena (home of Bundesliga team RB Leipzig) from EA Sports WC 2006 game to FIFA 07-09 and edited some textures and models. Now you can use it with animated crowds, lights, adboards etc. in game. Download here.
I replace files normally with creation master but also tried file master, bigGUI and finalBIG. Always works with original files and any other .o file , so i guess thats not the problem in any way. Only when i try to import one of edited files with o-tools it makes problems.
For import or export?
No .o file created with o-tools works in game. With or without textures (normally it does work even without textures).
First of all i had to install d3dx9.dll manually that o-tools even work.
And why you cant open any .o file created with o-tools in other tools i normally use to work with...
Maybe you can share it? Then I can have a look on fifa.fat
No need to do so. Just replace the heads of the existing players. You only need to know the player ids.
Or you can send me your messi-face and i can try myself.
Database update is not that difficult. Use DB-Master. I can do so as well...