I installed this hack and it's working well. made a bunch of usual anal retentive changes, but I did find a bug in their php code that was not displaying additional page of "favorites" if the favorites were not in the "root" folder. It was because they were not passing the folder id in the 'next page' link...
Here's the new line of code that should be used to replace the link without the 'folderid' variable - you'll find the line in favorites.php
PHP Code:
$pagenav = getpagenav($numoffav,"favorites.php?s=$session[sessionhash]&userid=$userid&folderid=$folderid&perpage=$perpage");
it's easy to install, but does require a lot of touch up work before deployment. I would still recommend it. my folks like it.
ps: you should also add these two lines in the header of the showfav template (because the page doesn't display the updated count of folder favorites:
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="expires" content="0">