Ooops... That's what I thought, and I had been looking in the override folder, but I missed the part about the "BG" prefix, so I was just searching for regular "AR2302.ARE" files... Well, for my defense, I installed Shadows over Soubar as well, so the override folder is quite huge now. Thanks a lot anyway!
So I suppose it's now safe to completely uninstall BG:EE?