multiple self-hosted wordpress installs under single account

I’ve got several self-hosted wordpress installations that i would like to have a single wordpress.com login for (especially useful when i’m using wordpress stats and commenting while logged in)

I’ve got 5 blogs listed under my id, a few are wordpress.com accounts, 2 are self-hosted. however i can’t seem to get a third self-hosted account to show up. i’m an administrator for all of them, and i have the same email address tied to all of them.

anyone know how i can get this resolved?