How to add link inside of Thank You message

2. After you complete the survey, I want their to be a THANK YOU page then re-directed back to our home page or a link to our home page.

To achieve that you need to set Thank You message inside of your form and then add link to your website.

http://www.jotform.com/help/211-Setting-Up-the-Thank-You-Page 

http://www.jotform.com/help/201-How-to-Post-Answer-on-Thank-you-Page 

Hope this will help. Let us know if you need further assistance.