What is it that you wish to add/edit? One of the mods (Little Fish) was the one updating the DB but, she's been out of the country. If say the best way would be to PM a mod or admin.
As it happens I'm working on the database at the moment, going through and updating the style of each entry and cropping the images a little. If you drop me a PM with the content and I'll get it added - in time I'm going to add a submission form to add/edit new entries and images :). That's really helpful of you to submit some info :D.