change Image folder

Please help! I'm fairly new with Altiris rapid deployment which I inherted from someone that left. Currently we use HP 585g2, Windows 2003, and Altiris 6.5 hotfix1. Use a DOS boot process to grab the Server image from the branch server, or just drop the image from the Altiris console from the branch server. I need to know how to change the current folder to point to a new folder, but can't find the logic. Let me know if you need more information. Thank you for all your help