There was a bug in my code that finds embedded MPQ archives that caused it to incorrectly locate the MPQ. This code is used in WinMPQ and MPQ Embedder, so the fix is for both of them.
I added a new section with information about some of the file formats my programs edit. I have posted aiscript.bin/bwscript.bin, .lo?, .tbl (Starcraft/Warcraft II BNE), and .tbl (Diablo II) formats. I will also write up the format specifications for .bin (dialog boxes) and .chk files and add those eventually.