Great timing... I was just having the same file upload issue with Laurena's Form Wizard Pro. Thanks.
I would like to point out something that happens after Form Wizard Pro sends the email and uploads the files and is complete. I am returned to the same form where I started using the form with only the Form Wizard Pro feature tile showing. The rest of the page is blank.
I have 2 issues with this.
1) There is no message saying the form was sent successfully (though it was.).
2) I also had 2 other features on this page including the Web Store Feature. They do not display now and I must re-select the page to see them again.
I can work around this, I just wanted to run it by you.
Just realized "I'm bad" adding new issues to related topic.