I think if one person is running the competition, to save people from posting votes and posting kits everytime... each kit maker posts there work on Photobucket or something similar and pm the image link to the person running the thread... he then can keep changing the original post with the kits for that particular week and to save people posting votes opening a fresh poll (if that's possible) and say for example the kit with the most votes gets 5pts... 2nd - 3pts .. 3rd - 2pts and the rest 1pt for posting.. but just have a certain number of kitmakers who will post everyweek
Sean has already said that it would be impossible to be able to create fresh polls for the same thread.