Correcting mistakes?

I'm new to this group & want to know how to correct mistakes. One of my friends writes under the name 'Kate Brady'. I notice someone has listed a book ('Holistic London: The London Guide to Mind, Body & Spirit') as written by my friend. This book was edited by someone of the same name, though the other Kate Brady is obviously British, while my friend is American. The London book was published in 1990, long before my friend published anything. How can this mistake be corrected?

It isn't a mistake for two people to have the same name. In any case, the author page seems to have been split already. So is there still a problem?

This one isn't a mistake per se, but simply a case where there are two authors with the same name. No one made the author page or put the works there deliberately: author pages and lists of books are simply generated automatically when someone catalogs a book with that author's name.

In such cases, the solution is to "split" the author page, which will create separate sub-pages for each author.

I've done that.
http://www.librarything.com/author/bradykate

Your friend now has a separate page at:
http://www.librarything.com/author/bradykate-1

Now you need for her to add a photo and some bigraphical facts.