That is completely alright and part of the reason we have it set up the way that we do. After the jam has finished, judges will have a month to go over the entries and at that point the winners will be showcased on our site like this: http://tyranobuilder.com/summer-jam-15-winners/ we dont even host the game so you will have have full ownership over your creation the whole time.
The goal of the jam is to help you take a project that may just be an idea and turn it into a project that you can make commercial.