Its all running under JR though it may not look like it at first, but its also using Brian's latest project 'Trestle' (http://trestleapp.com) to push all uploaded images out to the Amazon S3 Cloud - GBytes of storage for virtually no cost
The free Jamroom module that allows you and your users to lodge their gigs with the archive will be available in the next day or two, so in the meantime, please feel free up lodge 'real' gigs, venues and artists. Registration and login is part of the process and just asks for your email and password. You'll need to be registered to use the free module so you might as well do it now
Its new - there will be bugs - let me know how it goes.