Topic: Autoviewer Pro less then 400 px buttons next back cut off

I need help with creating an autoviewer gallery which has a widht of 318 pixels, the only problem is that the next and forward buttons ar cut of the window. I need them to be alligned with the side edges of the pictures, that works well when the gallery is 400 pixels widht. but when i include the gallery in an iFrame 318 pixels (w) the buttons don't allign.

My question how do i position them to be alligned to the sides.
(can i do that with the