single player campaign maps

hi, i was wondering: if i wanted to open up the maps from the single player campaigns in the world editor (like the ones with thrall and arthas and all that good stuff) how would i go about doing that? They don't seem to be anywhere in the Maps folder.

Thanks in advance,

Your loving fr0ggE

You can use winMpq (available from downloads section) to extract the w3m files from the win.mpq folder and then load those.
It is interesting to see how they do some things :)

Enjoy,
SheepOfDoom