Scrollbar problem - odd behaviour


Im using a scrollbar which scolls a masked area of a movie clip (text is contained). I used this from a file I have created in the past that works fine, however when i inserted the contents and modified to suit the current file im working on, it doesnt seem to wanna work properly.

Below is a link to both the swf and the fla if anyone can point out what im doing wrong that would be great!