How can I rename (or even remove?) buddypress' wire-section?

I am currently setting up an online community for the first time. I am a frequent worpress user, yet this one problem occurs:

I don't l开发者_如何学Cike the section name "wire". I'd much rather use something like "guestbook" or "short note" for it, but I cannot find the place to change it in the backend. It is not in the theme's CSS editor.

Same goes for the titles "Blog" of the Blog page or "Group/member listings" on the group/member pages :-(

Right now I am using Wordpress MU 2.9.1.1 Buddy Press latest version The free "Cosmic Buddy" Theme I do have the "Enable Theme and Plugin Editor" and I could change the navbar button names with it and many other things, but not buddypress specific functions titles.

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i would think you could do it following Customizing Labels, Messages, and URLs in BuddyPress' How-To Guides.