Well since noone else has helped you yet, I guess I could say something... Remember though, I have never done this, but try tapping on it at the bottom of the lens with your fingers, see if it gives at all... If it does give, keep going until it is straight or you break it, one of the 2 will happen lol Sorry I can't be more helpful...
Oh and the access panels underneath you can just pull them off, that's how I get mine off, then they snap right back in place...