SCCM 2007 : How to Remove the Central Site Server from SCCM hierarchy and Add New Server as a Central Site Server for Existing Hierarchy.

Hello,

How to Remove the Central Site Server from SCCM hierarchy and Add New Server as a Central Site Server for Existing Hierarchy.

Scenario.

1) ABC.xyz.com    ( Central Site Server) and Database is there on Seperate Server. 

2)Pri.xyz.com       (Primary Site Server)

    a)sec.xyz.com    (Secondary Site Server)

3)123.xyz.com      (Primary Site Server)

    b)456.xyz.com    (Secondary Site Server)

I want to Remove the Central Site Server (ABC.xyz.com) and I need to Add New Server (ZZZ.xyz.com) to Existing Hierarchy and Need to promote as Central Site Server and all my Existing Primary site Servers should report to New Central Site Server. 

Please let me know is there any option and procedure to achive this. 

Please help me.

MNYash