Yes, the advanced version is for developing the addons, so errors will appear at times, that version looks better because its what the basic downloadable version will turn out to be in the end(if you choose to make it that way).
Advanced Events Log
Advanced Monster Arena
Advanced Members List
Everything labeled Advanced is one up from the versions in the basic game, you have a choice to download these so that your game is how you want it to be. Theres a whole list of addons to be made on the forums; link posted above by Zazazi.