What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I recommend you create an account as well. You can use this link http://www.jotform.com/signup to create an account using your email account.
As to your question...
I checked your form http://www.jotform.us/form/60508000097143 and I actually see that there is a Paypal payment tool on it already.
Is the Paypal tool not working? Double check if you have setup the correct paypal account.
user guide: Setting-Up-Your-First-Order-Form
Let us know how we can be of further help.