Here's a search in AEScripts which uses the term "distribute" - since your link doesn't work, I can't see exactly what you're going for, so take a look at these choices:
http://aescripts.com/search/?q=distribute
Looks to me as if Distribute Layers, or Layers2Grid might be helpful. Short of something like that, sometimes you just have to roll up your sleeves and eyeball it. I always find that the Align and Distribute tools always need some hand tweaking.
Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com
