Welcome to HBH! If you have tried to register and didn't get a verification email, please using the following link to resend the verification email.
Other exploits
Isnt this the hard (debatable) part of making a challenge? Its not hard to code, just needs a good idea, and if you cant come up with your own then doesn't it defeat the point?
I would like to see something that isnt in the other 2 challenges, so I would suggest finishing the second pen test, seeing whats in use, and using something else.
It's just hard to tell what's intentional , and whats accidental though , for example , the page :
http://farwesttc.ulmb.com/page/contact.phpproduces an error , but I was pretty sure it didn't last time I looked .:| Maybe it's best to have it completed and fully working , then ask about bugs and typos etc , to save confusion .