Take it easy and learn from it. We had to ask about 4 or 5 other people to resize their images to the 350Kb mark and most of them did so. It's been going on for ages, just because it isn't written in the PoTW rules doesn't mean that it doesn't still apply in the contest itself as after all it's the forum rules the prevail over everything else anyway. Though lesson learned we will start putting every minute detail into the first post to stop this happening in the future even though we do count on common sense to prevail but sometimes that just doesn't work and you need to be clear with every point.
So starting with PoTW #38 the 350Kb forum wide rule will be added to the list of rules for PoTW also to avoid any confusion.
A good example is someone got DQ'd for having swearing in their licence plate, there's nothing in the PoTW saying about profanity being disallowed, but their entry was removed because it is against the forum rules.
In fact speed, just link to the rules themself when posting ie; All entries must adhere to the Forum Rules; 800w x 640h and a filesize no more than 350Kb (0.35Mb) in filesize