Unfortunately you´ll have to create new incoming / outgoing profiles for your Exchange Server 2010.
Just create those two. Map these with your organization and then delete the Exchange 2007 profiles.
If you then want to deploy the email router on another machine (Exchange 2010), just install a new instance of the Software. Do not configure or start it.
Then go to your old Installation path and copy the E-Mail Router Config.xml. Then start the Service on your new device and check if all settings are up and running.
Then deinstall the E-Mail Router Service on your old device.
Carsten Groth http://carstengroth.wordpress.com Microsoft Dynamics Certified Technology Specialist, MVP für Microsoft Dynamics CRM