Subcriber error: Violation of PRIMARY KEY constraint 'constraint_name'. Cannot insert duplicate key in object 'tableName'.

Hi,
I was able to setup Transactional queued replication between 2 databases. I'm using SQL Server 2005 Standard edition. The Replication was setup through the wizard. In the database, there are 3 tables - Customers, Contact and ContactPhone. Creating a new customer will also create a contact and contact phone record.
Each table has it's own IDENTITY column, increment of 1
The customerID is a foreign key in the Contact table
The contactID is a foreign key in the ContactPhone table
Inserting a new record in the Publisher works fine. Synchronization works fine. However, when I try to insert a new customer in the Subscriber, I get the following error:
Violation of PRIMARY KEY constraint 'constraint_name'. Cannot insert duplicate key in object 'tableName'.
I've checked the article's property - Identity Range Management and it's set to Automatic.
What do I need to do to get this working? Do I need to change the Publisher and Subcriber Range size?
I thought SQL Server takes care of this, is that not true?

Any help will be greatly appreciated.
Thank you.
Megan

Generally I have seen people disable foreigh key constraints on subscribers since its used for mostly reporting and the data comes from publisher where its already validated.

Hi,
But I'm using transactional queued replication which means users will be updating the subscriber if and when the publisher is down. The updated data will then be moved into the publisher when it comes back online. From the documentation, that's what I understood the transactional queued replication would do. Am i missing something?
Thank you for your help.
Megan

This might help: http://www.simple-talk.com/sql/database-administration/the-identity-crisis-in-replication/