[Mark McLeod]

For the wiring you don't need a PWM splitter. You can plug the servo directly into a PWM output on the sidecar or add a straight extender cable.
For a servo you do need a jumper on the pair of pins directly beside the PWM output you've chosen to use. Jumping those pins passes 6v power though to the center PWM output pin and that is where the servo gets the power to move from.

I like using the simple servo example code Greg's team provided for testing that the servo is correctly wired up. You'll find it from the LabVIEW Startup Screen under more examples in the lower right.