V4 needs to be in the main runtime folder.

You can copy the files to an external runtime and use them from there, but the original files still have to be in the main poser runtime.

Oh, and don't forget to run the .dat file after each file is installed.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi