Image Panning Problem

Hi
I have been using the code from Krilnon image panning tutorial :http://www.kirupa.com/developer/flash8/interactive_image_pan.htm.
Seem to be have a problem setting different co-ordinates than a 0,0 xy.

Basically what is happening is when i position the movie to a x position of 179px, the image scrolls, but i need to move to 0px to see the edge of the image - i need to be able to roll over the people in the image to view info, but on scrolling back right to left, the image does not reset to 179px position. here is an example of it:
http://www.origin.ie/imagepan

Any suggestions would be greatly appreciated.
Mick