Did you activate the changes? How is your ESX-Host configured in WATO? It should look like this:
Then you can go to “Save & go to service configuration” and you should see the new services you get from the host. If that doesn’t work you can go to “Save & go to connection tests” to figure out why you don’t get any information.
For monitoring the VMs you have to create a new host in checkmk for every VM you want to monitor with the corresponding IP-address or hostname if you have DNS-resolution. If the agent is already installed on the host you should get data from the host. This process is documented pretty well here: Setting up monitoring