TypePad has been upgrading their platform for nearly a year now. Most accounts are on the new platform (except mine) so you may be noticing some changes to your dashboard. If you're not reading the Everything TypePad blog, I suggest you review some of the recent posts detailing the changes.
The one you want to study first is the post on comments and profiles. TypePad has developed TypePad Connect as a new way to manage comments and create a profile. You can see my TypePad profile here. It integrates your Twitter status updates and comments you've made on connected blogs.