How do I get my paypal to work?

You can check this guide on how to make a basic order form using our payment integrations (like Paypal): http://www.jotform.com/help/165-Setting-Up-Your-First-Order-Form 

To make sure that you won't encounter any problems, please do check if your IPN in your Paypal account is enabled. You can refer to this guide: http://www.jotform.com/help/276-How-to-Enable-IPN-for-Paypal 

Do let us know if you need more help on this.