I just get a blank area when I embed my form into Google sites using iFrame

Hi-as per gpeppy (just above), I just get a blank area when I use iFrame. I've tried viewing the answer that gpeppy got but the webpage doesn't open.

I've copied the iframe code from the Embed Form Wizard into the Embedding snippet field of Embed gadget. In the code, it says that my form is 1631px long. And on the Jotform website, it says my form is 590px wide. So, on the Google Sites website, when I'm prompted for the dimensions to add to the display, I enter 590 and 1631. 

This just returns a blank form (the questions on my form are not displayed). The page in which I want to embed the form is here:

https://sites.google.com/site/kinkikiyou/application-page

Help much appreciated. 

Thank you for your reply EliezerN. 

I previously had the jotforms successfully embedded on my Google site, but as you said, they took up secure SSL submissions, and I need greater capacity than 10 a month. 

So, I'm trying to embed my form using a non-SSL connection.  I found the link below, which said this was possible:

http://www.jotform.com/answers/116704-Embedding-forms-on-Google-sites-why-are-they-automatically-SSL-How-to-use-non-SSL-connection-for-Google-Sites-

Is there a way of using a non-SSL connection to embed a jotform in Google sites?

Google Sites, if they don't change their policy, doesn't allow non-secure external links. I'm afraid that the form won't be visible if you embed the form using the non-secure URL.

Anyway, please try using the method provided by my colleague on the thread given on your reply. See if that makes a difference.

Thanks