Hi Kalpana.
IP2003 designed forms are fine with 2007. In 2007 they have a design
checker and you can turn on 2003 compatible in Form options. This way it
will warn you if you attempt to use something that will not work in IP2003.
I had both on one machine with the 2007 beta but it can cause some issues, I
would recommend using the whole Office 2007 suite since it is licensed that
way. Also InfoPath can only submit to email with the corresponding version
of Outlook.

Signature
Thanks
Clay Fox
Qdabra Software
http://www.qdabra.com
InfoPathDev.Com
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> Hi
>
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> Thanks
> Kalpana