Scott,
I've seen some pretty bizarre behavior with the load maps tool and tiles from azmap.org using a custom WMS server setup.
With the latest version I've seen
1. stuck at the 98% completion
2. spends 40+ minutes downloading 4,000 tiles and then there's nothing but the highest res tiles
First one doesn't bother me much but the second makes the tool useless for this tile set. Accessing the 2007 data, only using 2 persistent connections, texture compression off.
Try this. Turn off downloading. Select 0.06 degree tile set. Draw box around a single square with load maps tool and download. Should say it's getting around 270 tiles. Mine gets up to 98% and the longer it stays there the more cpu usage.
None of that really bothers me, but go to the map and zoom the designated square and you won't see any tiles downloaded at all. At least that's what I see.
Thanks for looking into it.
Steve
Addition: I think I've figured out what is happening with #2. Apparently the square that's drawn with the tool isn't the square downloaded from the server (and the offset is present with the urban tile set, probably all of them).