Exchnage 2003

Dear all

I work on Windows 2003 standard edition Environment
I had 3 domain controller Main DC and two additional DC
I had exchange server 2003 standard edition installed on windows 2003 on a separate server rather the 3 DC

I had True image server V.8 , I am new in working with acronis
What I need the best exercise to take a full image backup for the 3 DC and Exchange server
Drivers Structure as follow:

1-Main Domain & 2 domain controller C Drive contain the windows operating system and the active directory and D drive is only for Data
2-Exchange server C drive contain the windows operating system and Exchange Server and D drive contain the Mail Boxes store , Public folder store and the transaction log files

As you all aware that Exchange is fully depend on the Domain Controller so what I need the best way to take a full system backup for the DCs and the exchange system

If you have any document that can help me please kindly send it to my email address ( m.dawood@mafgroup.com.eg )

Thanks for your support