@discovertuscanyi: No, Zenphoto takes all meta data it supports, incl. the description (see my test site for atomicmak images).
@reneesanguinetti: Some cameras do things in special ways sometimes, we of course can't built in support for all. Best is tell us what camera you exactly use if images fail.
@atomicmak: Well, I really have no idea, it might be your server configuration. Please add that to your ticket. So my collegue sbillard has all data necessary to work with.