uh - can ePO 5.1 really manage AC 5.1? I only see 6.1.
so ... in order to see Solidcode/AC Information/Events in ePO - you have to check in the AC extension(s).
And: as far as I know MA 4.0 does not support the "run client task (at client)" feature. You'll have to assign a deployment task to that client/group and e.g. set it to "run at xy, once, etc"