I've created this script for use in our organization to quickly install an Altiris Agent and make it ready to utilize SWD tasks and Task Server SWD tasks.
This script will install the Altiris Agent, SWD Agent, Client Task Agent, and "SWD Agent for Task Server" Agent. Additionally, it will wait for the client to receive its GUID, then post a client config request. Once the script completes, the agent is immediately available to receive SWD Tasks and Software Installs via Task Server.
To customize for your environment, edit lines 4 and 5 with the name of your NS and your domain, respectively:
strServerName = "YourNS" strDomain = "yourdomain.com"
If you need to install additional agents, you can utilize this script and just point to pretty much any agent you want!