Hi Tamsue,
I prefer tu use /create a template with a green color background:
"Demo: Create and use an e-mail template":
http://office.microsoft.com/en-us/outlook/HA102450041033.aspx
"How to Create a Template in Outlook 2007"
http://www.ehow.com/how_2064447_create-template-outlook-2007.html
Maybe it helps.

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Oliver Vukovics
Share your Outlook PST files without Exchange: Public ShareFolder
Extended reminder function for Outlook / Exchange: Public Reminder Addin
http://www.publicshareware.com
>I am using outlook 2007 and have not figured out how to default my outgoing
> messages with the color I select. I can do it for 1 message at a time,
> however I want all outgoing messages defaulted to a green color.
> Thanks