As well, I got interested about this when I looked at the JCS-forum's last post. Oh, I have only 9 days left to make one.
I gotta start working with jcs immediately. Sad that I'm keen on other games than jj2, and it's jcs atm, but I'll try to do at least something so I finally could participate in a level-making contest. I've yet tried to participate in only one kind of level-making contest, but the deadline was already gone past when I tried to send my level for that.
So, now I must finish it before 30th october.

I usually like to put a storyline to my levels, so that keeps me interested on finishing it better.