I bet what he wants to do is make a blog like I did for my Mom, http://abj.jidanni.org/ . On Main_page I didn't transclude recentchanges, but instead just gave a link to Special:NewPages marked "<<< START HERE". I didn't use any extensions, even the ones especially for blogs. For larger blogs one should probably give in and surrender to WordPress though, (with its more rambunctious design philosophy (that was too much for me (e.g., it makes outbound HTTP connections on its own))).