*hurried explanation mode*
I'm not suggesting that you are unlicensed. Only that I have no way of knowing, and therefore prefer to be sure by doing it at vb.org.
People who steal other people's hard work are scum. My own modifications for
vbulletin have been released on several filthy chinese hacking sites, and it pisses me off royally.
*edit* I will be going for an owned license myself come renewal time.