This Hallowed Ground

Ok,

so before Vassal started having issues for me, I have been re-tooling This Hallowed Ground a bit so that the OOB is a bit more user friendly and easier to navigate. I took care of that part, and got a little ambitious and tried to adjust the map so that the battlefield appears in the more familiar north-south orientation than what it is now. I thought this would be a simple matter of rotating the picture file the map would be loaded from, and boy, that turned out to be wrong. Now, when I try to load the map I get bad data errors galore, the map doesn’t load and I don’t know how to fix it. I would hate to have to start completely over, since that would mean I would have to do the work on the OOB all over again. Is there an easy way to rotate map views?