Can somebody tell me why I am receiving duplicate emails in the "Messages" box and my newly created email box on an 8330? How do I turn off emails from being received in the Messages box?

You don't. On your phone, the Messages box is a "catch-all" box which collects messages from all accounts on your device.

Newer models offer the ability to turn that off.

Thanks for the speedy reply.

8330, like-new condition with wall charger and leather case...$60

Did I overpay, get a steal or is the price just about right?