There are no Insight Agents for SMS; you simply install and use the regular Insight Agents. The thing that does the magic is a program called 'Collect' from Compaq. Collect is designed to interrogate the agents for all the Compaq-specific hardware data. Try this command line:

collect.exe /sms20 /m

With this command line, Collect will gather all the data it can, format the data into MIF files, and place those MIF files in your 'NOIDMIFS' directory for pickup by the hardware inventory agent. It really works very well, and it offers a lot of power. I have used it for more than one customer to track serial number data, since Collect gathers this information as well.

Collect runs on each client and formats the output data for the SMS client to send to the server via the hardware inventory process. The server then stores the data centrally in the SQL database.

There are several ways to fire the Collect at the client. You can send an SMS package, insert it into a login script, or you could even set a client-side scheduled event. If you don't want to see changes, you can just run Collect once via any number of other methods (such as email to the clients, etc).