Adding Thumbnail tutorial

I was trying to make a scroller like this one

http://yzdesignatrium.com/ - select Portfolio

when I stumbled upon your Adding Thumbnials tutorial

http://www.kirupa.com/developer/mx2004/thumbnails.htm

Here is what I have so far

http://208.106.214.149/martasewall/thumbnail_initial.html

As you can see the spacing between my thumbnails is not correct. I did read through the code, specifically this line but I can not see what I need to change

target_mc._x = hit_left._x+(target_mc._width+5)*k;

Here is a copy of the fla

http://208.106.214.149/martasewall/thumbnail_initial.fla

I would appreciate any help.

charlie-imac