Hello , getting straight to the point sir , i guarantee you for fixing the bug in your magento . i know why the form is not displaying for entering the payment details.
I CAN FIX IT RIGHT NOW
Have many years of great experience in web development & design. Expert in Magento , wordpress , MYSQL , Core php , jquery ,
javascript , CSS , CSS3 , Web optimization , HTML5, API work.
and i do have question for you but i would like to discuss through live chat for better understanding..
waiting for your reply
Mohd imran