I was looking at the guide for installing preloader and it said that it worked on 3.2 and 4.0. I'm currently on 3.3u. I read elsewhere that it's safe to update to 4.1, but I was unsure if preloader would work with this or not. Is there a new version of preloader with 4.1 support? Is it even safe to update to 4.1 in general (so that my backup loaders still work)? Or should I just update to 4.0?