One thing to check on the storage side is that we have "browse datastore" permissions enabled for the account we are using to talk to vCenter.
The predicted depletion jobs run nightly so you may have to wait at least a day for those to fill in.
We have the ability to tie a script action to an alert - we have a couple out of the box. That particular script uses SNMP to query the process list and should feed the results back into a "note" (notes can be viewed and also overlaid non performance charts)
Online documentation can be found here