Guest Script in VM

I'm new to the Orchestrator world and I am making great strides with workflows, but need some help.

I have successfully imported the "Guest Script Manager" package and I have successfully used the "Run script in VM guest" workflow. However, what I want to do is a little more complex, and here is what I want to happen:

1. User reconfigures VM.

2. That action triggers an Event in the Event Broker.

3. The event triggers the "Run script in VM guest" workflow.

I've gotten these steps to work, however the inputs for the workflow require an input for the "VM (VC:VirtualMachine)", and I want to have the VM automatically come from vRA without any other interaction. As it stands, the Workflow fails, because there in no VM to run the script on.

I've attempted to use the the action "QCgetvCenterVmFromvCACVm", that I found on these forums, with no avail. Either I am using it wrong, or the action doesn't do what I want it to.

I'm not a Javascript master and could use some help.

Thanks in advance.