This amazing tool developed by iard68 from FIFAMania.it will allow you to easily import edited kits to FIFA 11. It includes two modes : Automatic and Manual. Remember that FIFA 11 Kits includes : kit texture, shorts texture, kit bump, shorts bump and logo. This tool will also allow you to export original kits from rx3 files.
Manual Mode
Select team and kit you would like to import. Click on LOAD and select one of the 5 possible images to import ( kit texture, shorts texture, kit bump, shorts bump or logo ) The program will automatically assign the file you have imported to the right slot. Once you have loaded images then click on PATCH and the kit will be applied to the game.
Automatic Mode
It automatically loads the 5 images and import them to the right kit. You just need to name them properly. For instance Palermo_home_kit.png, Palermo_home_shorts.png, etc.