Thin Vector Lineart Tutorial

I made this a few months ago, for a friend of mine...-_-
didn't know what to do with it...so I post it here (please don't think of it as a trash)

here is the link...
edit Tsubaki: Mediafire link

I make the lines of my wallpaper with this too...this tutorial work best on Coreldraw (I use Coreldraw 12, but of course you can use any version)
hope you enjoy it...-__-