Looking For A Registration Form For An Upcoming Event,

[BoostedK20]

I'm looking for a way to have users fill out a form, attach pictures to the form, and submit the form - all from my website. I have been on one other site that has done this (http://register.hondaday.com/). Once you submit what's necessary on their site, you receive a confirmation email with a specific 'order #'. It's not called an order number, but it gets the point across. It sends you a unique number based on your submitted form. Whether I have to create a page or even a mod for a specific thread or forum that I create, whatever it is. I'm not sure what to call this or how to categorize it.

Thanks in advance!