Help with Peristaltic Pump Tubing

[A.VOID]

I picked this pump up for dosing, but I'm at a loss on how to hook these tubes up. I have it setup in the picture the way it looks logical with IV tubes, but I don't think this is going to work for dosing.

Anyone with insight?

http://img5.imageshack.us/my.php?image=peripump.jpg

[Alaskan Reefer]

Have you run it yet? That setup doesn't look right -- you need tension in the tubing all around the "wheel" portion so it can properly squeeze water through.