If you have a pi source I can fix all the dupes on it for you if I have time, but here is a source that was released with a lot of dupes that were fixed: http://www.rune-server.org/runescape...pes-fixed.html
Also here is a tutorial with some dupe fixes: http://www.rune-server.org/runescape...upe-fixes.html
You can easily find more dupe fixes by using google also.