PROBLEM GETTING CK EDITOR TO WORK PROPERLY IN ZC1.5

Zen Cart 1.5
Upgraded from 1.3.8a

I just added ck editor to the site, but when I go to "Define Page Editor" or "Easy Page Editor" on the admin back end and select CK as the editor, and then select a file, the path shows up correctly, but the file code or source doesn't show up?

Its just a big empty box. It doesn't matter if I hit source or not, its still totally empty.

Is there a easy fix for this one?

Thanks for your help!