You can access and organize your User libraries using the Windows Explorer => go to My Documents\Punch! Software\User Library => you will find several folders like Components, Textures, Objects, etc.

In the Objects category, look for or create the desired subcategory and add the objects.

Each object should have 3 files => for example the 02Counter Towel object includes "02Counter Towel. POB" (the object), 02Counter Towel.pod (the description), and 02Counter Towel.ppv (the thumbnail) => if one of these elements is missing, you will need to rebuild the files in the library.

Using the Windows Explorer, you can copy the files from your old program and paste in the new V20 program.