can't find CCR replication registry   

I think one of our mailbox is set as CCR because I saw CCR tab under SG 
properties.  (how to verify it's a CCR not SCR?).  I tried to check registry 
value for 

hklm\software\microsoft\exchange\replay\state or statelock

but under replay I only got parameters.  no state or statelock.  Is it under 
somewhere else?  Or my configuration is not correct?   

thanks.

date: Tue, 11 Mar 2008 13:55:03 -0700   author:   Chris