Just post a link into the... brain not working at 11:51pm, what's that called... erg... um... oh well, the topic commenting thing. And if you what to change submissions if you make a better one, then just post again with the new link. Entry into contest ends Christmas and voting begins the day after Christmas. New Years the votes will be tallied and winner declared.
There are multible contest devisions by the way. The venator is in the mini division. There is also Starfighter(hotrod), speeder(hotrod), starship(specified peramiters in contest post), armor(anti-vong armor), and shuttle(theta-class shuttle). If you wish to submit into any of those, feel free to do so. And God bless you too.