Hi johndoeherty,
I used your solution on a network installation but it doesn’t work fine with authors of secondary sites. It doesn’t show title and excerpt of last post of authors.
I solved it adding two lines to your first code line:
switch_to_blog($blog->blog_id); // first line
$psts = query_posts('author='.$user->user_id); // get the authors posts
restore_current_blog(); // second line
Maybe it will be useful for other people.
Nico.
