In addition to the Redpaper previously cited, you can find information in
the appendix of the v5.2.2 revision of the  Windows - Backup-Archive
Clients Installation and User's Guide at
http://publib.boulder.ibm.com/tividd/td/IBMTivoliStorageManagerClient5.2.2.html
and also the Tivoli Field Guide - Using Microsoft Windows Automated System
Recovery (ASR) to Recover Windows XP and Windows 2003 Systems with the IBM
Tivoli Storage Manager Backup-Archive Client for Windows at
http://www-1.ibm.com/support/entdocview.wss?uid=swg27003812

Regards,

Mike Dile
Tivoli Storage Manager Client Development
Tivoli Software, IBM Software Group
mikedile AT us.ibm DOT com