using outlook, as the administrator,
create a public folder of type contact,
make besadmin the owner of this folder, or modify an existing folder and give besadmin owner rights.
then, login to the BES Administration: https://your.bes.server/webconsole/app
login with your admin credentials
open server and components,
blackberry solution topology
you should see:
"published public contact folder"
and there your public contact folder(s)
if possible, check the folders you want to sync to your Blackberries
then, login as the user:
(use your windows logon credentials) http://your.bes.server:18180/webdesktop/
left, there is a menu entry "Contact Folders"
klick there, if everything is setup ok you now can choose to redirect the public folders of your choice.
I forgot: you have to restart the blackberry server after chaninging the public folder permissions,
Otherwise it will not work, or you only will be able to see the folder, but, contacts will not be synced