I suggest positioning yourself in the center of the right most through lane, the through/right turn lane. I would take that position, or even to the left of that, to mitigate right hooks. This position will also help mitigate left hooks by putting you in a position more visible to oncoming traffic.
The heavier the traffic, the earlier you will have to negotiate for and move to this position.
Unfamiliar multilane intersections can be confusing. I have been known to put myself in a bad position in unfamiliar intersections both in the car and on a bike. Not something to get worked up about. Everybody does it.
Last edited by CommuterRun; 01-05-08 at 05:18 AM.