Yeah, I havent seen the error too many times, was getting it also in previous versions as well. I click commit a few times and it does manage to get it all saved.
Also, I'm not seeing the cool little spawn map like it used to be - is it not functional in this version or do I have to do something to make it show up? I'm unable to choose a spawn group or zone from the spawn tab.
btw, I really do like the admin tool, is so much better than trying to do it with a mysql frontend.