Hello mulcra,
Just to make sure you are installing NS6 correct? The AICM comes sort of "bundled" with anything you get direct from the Altiris\Symantec download site. It includes a prerequisite checker and helps pull down other solutions. That being said, it is not my preferred method for installing Altiris, and in some cases it can be problematic.
If you meet the prereqs (you actually read the manuals before installing !!!
) and get SQL installed, you can simply download the the Altiris_NS_6_0.exe from
http://solutionsam.com/solutions/6_0/ and this will install the NS. Once that is done, you can install any other solution via the solution center link within the NS.
Hope that helps,
Jim