Good points were made here by those posting comments. The locater mentioned will help you find a Symantec partner.
Within the Symantec partner community, there are a handful of companies who originally were "Altiris only" shops. Depending on how extensively you use Altiris, it might benefit you to work with one of those organizations. Those partners might be able to more quickly and completely answer your Altiris licensing questions and concerns. Also, because the Altiris platform is now the platform where other Symantec solutions are landing, those firms specializing in Altiris previously, may be well positioned to help you with other Symantec solutions as well.
ExpressAbility was founded in 2003 as a firm specializing in Altiris only. These days we do more than that but Altiris is still our core focus. We would be happy to assist. You can drop us a note to
info@expressability.com if you want additional information (that note will come to me). Thanks and good luck.