I should have been more clear about the previous bugfix. It does not fix the overflow problem that people are having with World of Warcraft mpq archives. It only fixed an overflow error that would sometimes occur when Windows is set to use a multibyte character set, like Japanese, Korean, or Chinese.
As for the other overflow bug, someone informed me of where it is and I know how to fix it, ...I just haven't gotten around to fixing it. ;) So stop e-mailing me about it; I'm aware of the bug already.