Hello. My first post I am wondering if there is somebody out there who may be able to help me with my problem!?

My site is almost ready to go live after too many months of work. I have found that all my products with attributes, will not show an add to cart button, a "tell a friend" button, or anything at all actually after the product description. I have attached a screen shot to show you. It is as if the page ends after the product description.

I have worked out that when I remove attributes from my product, the add to cart button appears and works normally. So I am really stumped.

Things I have done recently was to try and get the add to cart button to sit on the same line as the quantity box. I do not recall any other changes. I made this change according to one of the threads that discusses this: http://www.zen-cart.com/forum/showthread.php?t=85334.
Thinking that this might be the problem, I re-uploaded a fresh product_info_display.php, but to no avail.

I then removed all the attributes I created, and then re-assigned them to my products, but the same problem reappeared.

I don't know what else to do... I have worked on this for two days straight and am pretty desperate, so I would really love and appreciate any help whatsoever!