The Entourage Help Page

Use Growl for Entourage Notifications

You will need to download Growl. Growl is an easy install (just double-click the preference pane in its disk image), and quite unobtrusive. Just select the "Sticky" checkbox in the Growl preferences for Entourage notification if you want then to stay up until you close it. See the Growl Setup instructions to make your personal selections for time notification window stays up.

Growl is a notification system for Mac OS X: it allows applications that support Growl to send you notifications. Growl is donationware.

Download Script or copy/paste this into your Script Editor:

tell application "GrowlHelperApp"
	set the allNotificationsList to {"New Mail"}
	set the enabledNotificationsList to {"New Mail"}
	register as application ¬
		"Entourage" all notifications allNotificationsList ¬
		default notifications enabledNotificationsList ¬
		icon of application "Microsoft Entourage"
end tell

tell application "Microsoft Entourage"
	set theMessages to the current messages
end tell
repeat with theMsg in theMessages
	tell application "Microsoft Entourage"
		set mysubject to get the subject of theMsg
		set mysender to the display name of sender of theMsg as string
		if mysender is "" then
			set mysender to the address of sender of theMsg as string
		end if
	end tell
	tell application "GrowlHelperApp"
		notify with name "New Mail" title "You have new email" description ("From " & mysender & " about " & mysubject) application name "Entourage"
	end tell
end repeat