isnt there a way to replace existing pwi files with epw files to bypass full download?
I don't think so, just download Epic PW. http://epicpw.com/index.php?page=download
used to be able to few years ago, but not anymore.. in short, too much of a gap between PWI contents and here now, also i think people were starting hit too many glitches and what not trying to do that hence we got rid of it.. don't remember was so long ago. , easier and less hassle to jsut do a full download now.