Just in case you missed the post in the beta's thread
MapMaker 192b138+
And DN, you could include this with all the other ZC stuff in the beta posts, if you like.
I've tested this with a b139 qsu file, and it seems to work fine. One thing I realize I didn't update - this version doesn't check to see if a qsu is from an earlier beta. So if you try to open a pre-138 qsu with this, it'll likely crash.