No need for the apologies, we're all here to learn!
You don't need to plug the battery into the "Batt" port of your receiver, your speed control will provide power to it when you hook up your main battery to the speed control...
Just have your steering on CH.1, your esc on CH.2, and you'll be fine.
Make sure you protect your LiPo, I'm not very familiar with the Velineons, but make sure it has a cut-off function to not let the battery pack go below certain voltage.
Check your manual for what that voltage is for a 3S.
The most important thing with a brushless/3S combo, make sure you check your drive train, that setup is blazing fast, any little bit of wrong meshing between the gears can cause a failure...
RIP TAP RC