Ye, I second that... I really love this addon for raiding. Saves quite some time.
But... it took me like 1 hour to set it up for the first 3 bosses in BT (or rather for the trash in between).
Most likely because I use the german client, so I went wowwiki -> looked the mobs up by zone -> went to Allakhazam to get the german name -> went to wowhead to get the pic -> set the mob up in MM.