My New AlphabetPage Extension is available from:
http://soxbox.no-ip.org/radiant/svn/extensions/alphabet_page/
Adds a new page type, AlphabetPage, which works quite similarily
to the ArchivePage but insteads breaks down the children into
sections alphabetically, rather than by date.
If the admin_tree_structure is installed, this extension will also
break down the list of children alphabetically in the admin page
tree (but this extension will also work quite happily without
admin_tree_structure).
You can see it in use here:
http://www.thegroggysquirrel.com/comics/
Dan.