In a DNN 7, site, how do I change verbage like the  word "Register" that's usually next to "Login", to something like "Guest Book" and make it read the same in the registration module and login module? As far as I can tell, it doesn't appear to be in the skin files.  Is this a database thing or is there a file in the FTP or setting that does this?

 Thanks, Jeff...

Ok, I followed your instructions so far, and as far as the registration components, it worked perfectly for the registration and Login module, but the link that seems to be embedded in the skin is still unchanged. Is there a different procedure for changing the the text in the skin that is the link for the registration? I'm referring to that link that's usually next to the Login link in the skins.

OK, I've done these steps and no luck. I found where the Login and Register links that I am trying to work with might be tokens, I found in the Skin Editor where I can replace the word Login, but no such luck for the Register word.
Any idea what to do next?