Pure Two Tier CSS Menu Problem

I am having some problems with a 2 tier CSS menu I am writing for our company website.

The URL is
http://www.rotec-ltd.com/test/index.html

Basically I want the child menu's to nest flat against the side of the menu border instead of sitting directly underneath the parent menu item.

http://img340.imageshack.us/img340/6930/menues.png

Update: don't bother, I've come up with a slightly more elegant solution.