Contact Form insert URL

Hi,

I am having an issue adding a link into the contact form.

The website is http://www.bensonleasing.com.au/online-application/

I need to add a url link to the ABN lookup tab so this can then go to this website.

Can you please advise of how I could do this?

Thanks, Carly.

http://wordpress.org/extend/plugins/easy-contact-forms/