I took a look at some of the admin options for you specifically and for the PM system. Unfortunately, I didn't see any way to edit the options you wanted edited in either case.
Also, there's no editable option that I can see to turn PM tracking off either. Not that I have to worry abou tit, because I'm a boy and don't have those options. LOL
I like VBB and have only small issues with it. I'm also familiar with the interface now. I'd really rather we didn't change it unless it was absolutely necessary, but that decision is up to Jinn, not me.