FYI - I uploaded freebuild map based off this one with some fixes, which will also allow you to rebuild your castle and trigger attacks. I haven't seen it show up in the freebuilds section yet tho.
The items fixed:
-better waterfall by the castle steps
-removed some rocks from the square in front of the castle, so you can use all the land there (I liked using it for weapons production), and some other minor cleanup items that didn't flow quite right.
Keep an eye out for the freebuild version here, or you can get it at my home site if you don't want to wait (http://fanaticalproductions.net - click the [SH] button at the top, it's the last map in the list).