I've wondered for some time how you submit a photo for the competition ?
if you keep looking in this section http://www.allotments4all.co.uk/joomla/component/option,com_smf/Itemid,91/board,28.0 (http://www.allotments4all.co.uk/joomla/component/option,com_smf/Itemid,91/board,28.0) you'll see that Dan makes an announcement when it's open for entries to the next competition, in Dan's announcement there is usually an email address where you can send your entry to. :)
oh 'eck - memory like a sieve ...