Hi Daniel -
Since you don't mention version, I'll assume you are using the latest
Entourage. It can Import from Apple Mail, which uses the Address Book data.
Make sure Mail & Address Book are _not_ running & in Entourage go to
File>Import. Select Import from File, then follow the wizard prompts. (I
should add that I haven't had occasion to use the feature myself, but that
_should_ work.) I don't know of any 'easy' way to synchronize Entourage with
Address Book or Mail, so if you make changes you will need to repeat the
process unless someone can offer additional suggestions.
When you get to the wizard screen to choose which program you're importing
from you will find that QuickBooks is _not_ one of the options. However, QB
can Export data in a variety of different formats. The most likely option is
Text, which can then be Imported into Entourage as described above.
HTH |:>)