As with pretty much any (windows) application, you find the version by opening the about dialog from the help menu. As for onion skinning, please read the manual at https://docs.krita.org.

@tuffcatisroyalty In this situation, the posting of screenshots is a very good idea.

I suggest that you go to https://krita-artists.org/ then sign up, sign in and make a New Topic that describes your problem.
That forum is very suitable for easy upload of screenshots and images in general and it has a very active community.

Onion skins do work.