Custom class / attachMovie - Need help

Well, hello there guys and gals… I have a bit of a problem I was hoping that someone
could be kind enough to answer. :look:

Im kinda new with actionscript, but the thing im trying to achive is something like
the seperating lines you can see on this page:

http://www.dunwoodie-architectureanddesign.co.uk/main.php

I dont really find it that difficult just to create some lines like that,… but im trying
make a class. So one seperatorline would be an instance of the class… etc…

However Im experiencing some difficulties with attachMovie function within that
class.

I have included my .as file
Thank you!