Not sure you can upload it here. Have you no home web site you canplace it on for us to see?
However... from yoru description it look slike the clip has either been digitally zoomed and lost defintion or has been exported at a very low bitrate. Either will lose details and no amount of tinkering will get it back I'm afraid.
Have you still got the original tape in the camcorder. bets to recapoture it and start from the beginning.
Of course, Imight change this opinion once I;ve seen it.