I need some help with it, too. I'm running XP, and just freshly installed WoW and all my addons after a reformat. I've got AtlasLoot, the entire Auctioneer Advanced suite, BigWigs, LittleWigs, Gatherer, Omen 2, Possessions, Quartz, Ratings Buster, and Recount installed, along with Bartender 4. I'm showing it as installed and good to go from the addon list pane, but when I log on... no sign of it. /bt4 doesn't bring up anything, either. Clues?