Outlook 2003 template in Outlook 2007

I have an email template in Outlook 2003 that shows a form that needs to be filled out along with a regular message box so that files can be attached and information that doesn’t go in the form can be passed on. I have one user who has Outlook 2007. We have loaded the template on his system and published it from within his Outlook. He can open the form fine and fill it out but when he receives it he doesn’t get the form all he gets is a regular email. I checked the Read Edit Page in the form definition screen and it all looks good to me. Is there some trick to getting it to work in Outlook 2007?

There aren’t any macros or any kind of script code imbedded in the form it’s just a form.

Thanks for all your help,
Judy