The uploader is apparently not the original author (the description indicates the version on WoWI is a fan update), and hasn't logged into WoWI in over a month. He didn't even bother responding to the bug report posted just a few days after he uploaded.
I found the original on Curse, but it hasn't been touched since February of 2007.
In other words, don't hold your breath for an update. Might be time to start looking for alternatives.