To create a Shockwave Fileset, there is no need for Fileset Magic. Instead, drag&drop to an empty Fileset will do it.
Last tested with Shockwave version 18.104.22.168 - works as directed below.
Shockwave Player Installer
Download the blank Shockwave Fileset attached with this document and import it to your FW Admin (Note: this Fileset already has the Folders used by Flash added for you)
Install Shockwave Player on the same machine as FW Admin. (We are going to use drag&drop from Finder to Admin)
Open your Fileset (double click), it will look like this:
Open your Finder and drag&drop the following folders/files to their respective paths in the Fileset :
/Library/Application Support/Adobe/Shockwave 12
Delete the placeholder files "deleteMe" in the Fileset and the Fileset will look like this:
Your Fileset is ready.