You may want to consider a consultant to come in and configure all of this for you.
If not, if you are trying to publish managed client settings to the Mac OS X clients, you'll need to do one of two things. One, you could create an Open Directory Master, populate OD Groups with AD users and add in a second authentication node to your OS X clients. The alternative is to extend the schema of the AD to include the Mac OS X specific attributes. If you want to go that route, let me know off the site and I can give you the details about that implementation.
How are you searching for the shares on the Mac side? What file sharing services do you have enabled?