Kirupa vertical scrolling - Almost there

Is this possible? To update Kirupa’s (from this cool tute: http://www.kirupa.com/developer/mx2004/thumbnails3.htm) from horizontal script to vertical?

I’ve got everything changed except the one last CRUCIAL part: the vertical scrolling.

Here is the page that I am updating to a Flash vertical scroll: http://208.131.133.122/gallery/style.php

Here is where I’ve gotten so far:
http://208.131.133.122/gallery/thumbnails.html

The 1.2 MB Flash and xml zipped file can be downloaded from here: http://208.131.133.122/gallery/thumbnails.zip.

ALL help would be much appreciated.

Thanks