Is there an opensource crypto-currency exchanges engine? I'm looking for an opensource crypto-currency exchange engine.

My preference would be for something easy to use like joomla or drupal. My exchange setup needs support for alt-coins and bitcoin.

I have discovered intersango myself. However, sql file is corrupted, there is no creation of tables and import does not work. Plus it is bitcoin exchange only (and I need alt-coin support). Site of this exchange with "invites only", registration is closed.

Is there something super-simple that I can use to get started?
Yeah it's called buttercoin here is their code.