The Drunken Lizard Pub

Thanks-- a silly little thing, really, but I was frustrated... Another question-- I got the 4th key from the wizard and went back to the citadel, pulled the lever by the dead body, went to the SE corner of that chamber, and came to another portcullis. I'm stumped again. How do you get that one open?

I can't for the life of me figure out how to place the healing/ogre strength potion in the chests to activate the teleporter. If someone would be so kind as to clue me in...