Many thanks for the suggestions, here is where I am at right now:
I entered the new code you gave me above, when I try to submit the form without the file upload I get the ",6" error. When I select a file to upload, it gives the progress bar, and submits. I get the email sent to me, but without the file attachment.
I do want the form to have the file upload as an option, not a requirement. It is set as that in form builder, but seems to not be correct somewhere in the code? Also, when someone ataches the file, I would like the file to be attached to the e-mail it is sent to.
Hopefully this helps, thank you for your help with this issue!