I'm guessing by now, most people have received their email from multiplay with a hyperlink to print tickets for tomorrow. However, when you go to click the link and login, it states 'Unable to provide e-ticket as booking for StratLAN Autumn Social 2013 is not fully paid.'
Don't freak out, it is just because multiplay have not updated the link. Edit the address in the search bar (https://multiplay.com/bookings/e-ticket.asp?event=i48) to change the event from i48 to i49 and you will be able to print your tickets!
Hope this helps someone.
Cheers, Mr Q