Welcome aboard GirlAboutTown! (What town are you about? JUST KIDDING . . . . )
However, this generic script is well known for being abused by spammers, and is a headache waiting to happen for you, beginning with
<INPUT TYPE="HIDDEN" NAME="recipient" VALUE="firstname.lastname@example.org">
Although it's a hidden field, this is an appetizer for email spiders. They will read your page and find this email, drop it into a spam list. If you have access to this script, hard code the email address into the script, at the very least.