after i imported my forms from form central , one of my forms had a link attached to it after you hit submit button , how do i get rid of that link

You must be referring to this form http://www.jotform.co/form/51754228900858

To remove the redirection link, you can either use the default Thank You  page or the Custom Thank You message

Hope this help. Let us know if you encounter any difficulty doing this.

Thanks.