Hi,
autosearch in support and lookup tool is not always the best way to search especially in this case. I don't understand why but you are right that there are only few items and the rest is marked as discontinued.
Better way in this case is if you try to click above on category and then select software and click next and scroll down to HP Intelligent Management Center. There you can see a lot of stuff related to iMC.
Or there is link to management products page:
http://h17007.www1.hp.com/us/en/products/network-management/index.aspx
So iMC is the future. Suppose that PCM/PCM+ will be supported too in the future for small/medium solutions based on E Series products because it is cheaper and offer basic PCM which is cost free.
BR,
Jan