The problem I've been having with the XEP install is the result of missing source files in the devkit download from RenderX. The kit contains Ant build scripts for a variety of connectors as well as the source for doing so. The current download of the devkit is missing only the files I need!! I have spent at least 3 hours working around this problem, and it turns out to be RenderX's fault. I've contacted them with the problem - hopefully the response will be quick.