Move your </form> tag to the end of your fieldset elements, and I bet it starts working. Essentially, it should look something like this where all your fieldset elements are children of the form element.
Your issues are caused by the structure of your markup. Your other fieldset elements aren't showing up because they are not found inside your form.jquery-order-form element. Your script at the bottom of the page initializes the jPrice plugin on this form element.
Hope this helps.