michael - if you do, use a IP checking tool to limit the IPs per day. Test it out with as many connections as possible to ensure it picks up the IP properly.
EDIT: The improvements look very sexy indeed
EDIT2: Under terms and conditions you said "IF YOU BROKE THE TERMS.." should be "IF YOU BREAK THE TERMS.."
Also.. when it says Thank you for using e-mailer you should do a redirect after 5 seconds to the original page and maybe say
"This page will be redirected in 5 seconds or click here" along them lines..
etc