Yes, I go to kitserver\GDB\uni\Club\Others but River's folder is not here :S
which version of the patch do you have?
---------- Post added at 10:29 ---------- Previous post was at 10:26 ----------
ouh yeah i know whats your problem. because river has only 2 player kits the patch creators didnt make a gbd folder. you can create a folder and put River Plate with the game id in the "map" which is also in kitserver folder or you can use game graphic studio to insert your new kits over the old ones.