Jason, after correcting the mistake it still doesn't work. I'm including the code for your review.
I am wondering if the validation on the file field is somehow causing the problem. When I created the file field in FB, I did not indicated that I wanted validation, i.e., I left the required checkbox unchecked. However, in the example I provided it shows that a file IS required and, if I don't select a file, it tells me I need to select one. So, it is validating that field even though I did not request it nor want it to be validated. Just a thought, but in any case I need to find out how to get the validation removed from that file field in addition to getting a file uploaded.