Site isn't working...

So the site I'm creating for a business uploads just fine. I put everything in the correct folders in the client and etc. Everything works just fine on my beta server, but when it's on their server, things just don't work. Images aren't showing up and there is strange coding actually showing on the page itself. Can someone take a look at it and tell me what's wrong? Is certain coding not accepted or did I upload things incorrectly? I'm using iframes.

here's one of the subpages:

Thank you in advance!

Dear Miss Wyatt ..

Please add the license key id of your license to the profile in the forum. If you do not have a license yet you can purchase one at:

Thank you