cyberium's AHBot code has been upgraded, removing the need to have a player character assigned as the bot. The AHBot in his patch is now self-contained. It instead uses a very clever bit of code where you simply provide a name, in mangosd.conf, for the bot to use if you wish for it to be identified as other than just "AHBot" in the auctions. This eliminates one of the major reasons Vladimir would not consider accepting AHBot into the MaNGOS core.
Unless I've missed a major update, I believe xeross' AHBot still works the same as its predecessors, where a character and its GUID are needed to create the bot. This means it will not be considered for addition to the core, but it does have much to offer as well as ongoing improvements and added functionality by xeross.
Ideally, I'd like to see xeross and cyberium combine their efforts so the community can benefit from having the best of both patches.