Not that I can find, sorry. Entourage isn't really the program of choice these days for Mac. Many users are migrating back to Mail 2.0 or using Thunderbird 1.5.
I recommend Entourage for new employees at my company (all mac) who've never used a Mac, and need a familiar, Microsoft-y interface. Then after they get used to OS X, I introduce them to Mail. I've never had a single user go back.