I played a few games with BtS and there was nothing wrong.
Now I tought lets DL the latest version, maybe it has been updated. Don't think that was the case tough..
When I get worlds with only grass
I removed the mapscript in all folders the publicmap folder of civ4, warlords and bts. Reinstalled the script. Did that like 6 times but all i get is grass worlds. What has happened!
I cannot play BtS without this great mapscript, beautifull worlds. Tried Smart map wich generates nice worlds too but the starting locations are really bad. Some civs starting in tundra without resources and some (arabs, coincidence?) started in 1 big desert.