Base vs. Base Upgrade.... I do have V1/V2...but how does that work exactly? Does V1/V2 have to be present within Poser? Does it overwrite the CR2 file?? Is the upgrade stand alone?

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854