You still didn't say where the form is published. Unless it is published to the Organizational Forms library on the Exchange server, it's not going to work.
On the read page, did you check each control to make sure it is bound to the right Outlook property?
Also, if you increment the version number on the Properties page each time the form is published, you'll be able to troubleshoot using the Help | About This Form dialog to find out what version the user is actually seeing.