On the above map, the treasury is at the top. Each of the white squares in the middle is one of the posts. Pull #1 is the "key" pull...do this one last. Pull the chains from 2 through 8, then go back around and pull #8 through #2 in reverse order for those who have gone back up. Check back to make sure they're all down. If any go back up, pull them again. When #2 through #8 are all in the down position (the gargoyle's eyes light up) then pull #1. The gate should open.
-Sazerac