Understood. I did give it several tries and repacked successfully (at least I hope so: perhaps the WinREZ bugs made the whole package incompatible in some way?) but my every attempt met a brick wall. Though the WORLD files would open without a problem in the editor, the game simply refused to load the area - hanging up on the loading screen. And that was usually after a simple texture switch. We also had trouble with converting the .DAT files to .ED files. The editor happily converted our .EDs to .DATs, but while several of the "worlds" were available and editable as .EDs, the .DATs could not be opened. I don't even know if backward conversion is possible here, but I suppose TELP managed it at some point. Here's a screenshot - on the left are the available worlds, but all others were in .DAT format and off-limits to us.
http://i192.photobucket.com/albums/z199/Cepheus_03/RavensfordModding.png
Oh well, maybe I'll give it another shot with LithREZ next month when I have more time.