Speed Dating Modifications

I've been looking for a mod, but can't find what I need in the 13 pages of the downloadz area, hopefuly someone can help, but they must know what their doing...

I've noticed that you need to login/register before you can register yourself on a speed dating event. I want visitors/non-members to apply for one of our speed dating events, but not to have to sign-up first.

The ideal would be as they apply of the speed dating event, the form also registers them.

Please visit our site: http://www.activelydating.co.uk.

THIS IS A VERY URGENT JOB, as we are starting to set up venues for our speed dating events. There will also be other small modifications need, so this is not just a one off job.