All boxes are now text fields - I've set the ones that should be numbers to numerical only. There's a second overflow page, just one big text field.
You'll probably need to download it and open it in e.g. Adobe Reader - Firefox displays it but doesn't let you edit it, not sure about other browsers and readers.
update 23/12/13 - tidied it up a little, and got the file size down considerably. Please download again if you are looking at an earlier version.