Oy. So I've spent the last few days modifying the wp-config file to see if I could stumble on something that worked. I saw a post several pages back that gave instructions to modify the ABSPATH lines at the bottom (below where it says STOP EDITING). I finally ended up putting in the long absolute path to my directory in the first line. I believe this may work for others having this problem. I got the error message to change at least. This time it tells me my host isn't running PHP version 4.1. I'll just go cry now...
Anyway, this may be of some help to the others with this problem. I modified the lines thusly:
The stuff in the quotes I stumbled on by looking at my log files from my greymatter installation.
I'm kind of new with this kind of thing so it may or may not be the right thing, but I'm stuck now without the proper PHP version.