Looking for the easy way to line up rectangles using x, y, z

[mathis]

Okay, I fought this until midnight last night and have been working on it for three hours this morning. I give up. It's time to call in the experts.
I have C3DPS. I found an intro on Youtube.com at:
http://www.youtube.com/watch?v=PQjaId5R2fs
that I really like.
Except that I am making them rectangles and making them be alabaster boxes. I got four columns, but as you can see, they aren't lined up right. And I probably did it the hard way.

Here's my file: http://mathisbrogers.com/pfc/Alabaster-Intro.c3d

Any help will be greatly appreciated.

Thanks in advance.
Mathis....