Need to modify an xml gallery actionscript in flash

In the included pageindex file- there is a gallery on the 3rd frame just within the site. (test then hit next frame to see it). I am attempting to modify the thumbnails to the left of the main picture. There are currently six in a row and I am attempting either a. stack them vertically or two per row vertically. Please correct the file to accomplish either or both of these options. ## Deliverables The fixed files or instructions to accomplish the above. ## Platform mac os x flash cs3