I was playing Bloodmoon when the game stopped and a message popped up, saying meshes from the "_WGRR" folder were missing.

WGRR stands for Windows Glow Raven Rock.

I'm using abot's http://abitoftaste.altervista.org/morrowind/index.php?option=downloads&task=info&id=45&Itemid=50&-Windows-Glow-Raven-Rock-English-Patch, but I think I don't have the right version of the original mod. All I could find was http://mw.modhistory.com/download-56-6231, which includes Raven Rock but keeps all the files in the folder "_wgb"

Where could I find the original version of the mod (WG Bloodmon + WG Raven Rock), or a patch that works for this version? Thank you.