*nods* I think this is tied to the character update mechanism, which wasn't working at last look. If it was working, associating that character with your account in your profile would do the trick...or at least that's how it worked before we lost the site last year.
You can't really do it yourself in any other way, but we'll be happy to make the change for you. It's no different than the process of getting access to a particular deity forum.
So to be clear, you'd like to remove Ilsare and add Toran?