Is Maya 6 not compatible with Ogre 3d for export? I saw 4 and 5 on their site, but no 6. Is there anything out there that will make Maya 6 and Ogre 3d work together?

Don't know specifically how OGRE works, but if it comes with a Maya plug-in for exporting, then likely the plug-in just needs to be re-compiled for 6. If OGRE actually loads native Maya formats, then there might be a little more work needed.

Browse OGRE forums to find the status of Maya exporter. Several people did build the exporter for version 6. The general problem is that there is no support for it right now and it is not a finished product, so it has some bugs.