I still don't know what we mean by Zeus. Where is the home-page of the project that develops that software? What exactly is it? Are there known compatibility problems getting PHP apps to work on it?
OK, so it seems to be http://www.zeus.com/
, which is commercial software, which means that the website if full of marketing drivel, but light on technical information. Looking in their knowledgebase, there are no search results for Moodle, and the search results for PHP seem irrelevant.
You are really on your own with this. For an easy life Howard's suggestion to switch to another host has a lot to recommend it.
However, specifically on the Moodle 2.0 install thing. It must somewhere be doing a test on the type of web server you are trying to install on, and rejecting any that are not of a given list. You just need to find that code (try searching for the error message, and pack-tracking from there). Then just disable that test so you can try the install anyway. But you will be on your own.