It's done! After a year of putting it off, I finally shut down DMA. As of today, the site is down and a "thank you" page is in its place. I don't believe anyone will miss it much anymore as most people will have already blocked it off as a "SPAM" generator. Damn PHP pirates! Anyway, I'm still here, so if any of you want to get in touch, just drop me an email.
By the way... the domain name (documentmanagement.org.uk) is available, if anyone has a good idea what to do with it.