Are you a Patreon subscriber? Because the VT+ mod you have is meant for the Patreon release of the game (the ReadMe.txt and the name of the file is for 0.1b). If you got that VT+ from the Discord feel free to message me there, otherwise download the VT+ meant for the non-Patreon subscribers (for 0.1).
Once you do one of those things, you do what you did in the video along with replacing the Assembly.CS in the original with the one included with VT+.