If you want to change the message “Running: Lite Touch Installation” in the progress display when deploying a computer, you’ve to change the file LiteTouch.wsf in the folder E:\DeploymentShare\Scripts (in my environment!)
Search for the text “Lite Touche Installation” and replace this with your own text. For example: “Running: Deploy Microsoft Windows 7”. Save the file and update your deploymentshare. Import the new WIM file into Windows Deployment Services (WDS).