The guide reference you found allows the tests to be configured from the Data Aggregator if there is a write SNMP profile. This is likely not required since you show discovered components.
I suggest the next step is to verify the tests are running. "show ip sla statistics" on the device CLI will show the tests' last operation time. "show ip sla configuration x" where x is a test number will show the test configuration parameters. An entry like "Life/Entry Ageout (seconds): Forever/never" indicates the test is running continuously.
Steve