Aha! We're getting somewhere! :-)
Now, for some reason, we're getting a ton of PHP errors on the page. You can see them here:
I also get the same PHP errors on the "blank" test page, as well as our original form page. I have uploaded and re-uploaded the files in the "webassist" > "form_validations" folder. So the referenced files are there and in the right location. Are there any other reasons why these PHP errors could be showing up?