I don't think Web Designer MX has a Names Gallery, Acorn. Nor does it support Styles so Nick will have to go through the document page by page, select the text and locate any text that is not web safe.

Nick - Web Designer 9 Premium supports Styles (Normal Text, Heading 1-4) etc. So if you assign a style to your text then you can simply redefine a style and change the font, style, size, color, size etc. all in one step. Something to consider.