JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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 have also tested your form http://www.jotform.us/form/50185137580151 in Internet Explorer 8 and your form is working.
I have also submitted your form and got redirected to PayPal.
Is that the form that is not working? If not, can you please provide us ID of your form? If you have embedded form to website please provide us URL of your website.
Looking forward to your reply.