The request is
Please do NOT add to another set.
It means that any brush within the set must not be added on to any of your own brush sets or anyone elses to make up another set of brushes and distributed anywhere on the web as your own or anyone elses. Or added to a CD and claimed as your own or any one elses. That being my complete set or a partial of this set (FLOWER SWIRLS) nor any other set I have created.
But please feel free to use in your own artwork but not for commercial gain.
I am sorry I did not make this clearer in my posting.