Well, one of the problems is that you linked us to a gigantic image file that takes forever to download. Next time make sure it's really a .jpg and format it to no more than 72 dpi (more makes no difference on a computer screen) and is something like 800x600 at the most, which is very easily readable.
No, not next time. Do it this time. It's taking forever to load your image. Once you replace it, I'll have another look.
Open your trigger editor window and click on the filename of your map at the top of your trigger tree. There should be a big blank area on the right where normally there is trigger data.
It looks like yours might have "4" typed in it, for whatever reason. Anyway, unless you've inserted functions there for some reason, just delete everything in that box and save.
