How can I replace the default playlist for "recently added movies"?

Here's what I did so far:

Read http://wiki.xbmc.org/index.php?title=Cus...ustom_node
Created http://pastebin.com/Y1WDgPC2
Saved that as recentlyaddedmovies.xml
add that file to Macintosh HD/User/myname/Library/Application Support/XBMC/userdata/playlists/video

that seemed to have no effect so I

replaced the existing "recentlyaddedmovies.xml" files in
Macintosh HD/Programs/XBMC/Contents/Resources/XBMC/system/library/video and
Macintosh HD/Programs/XBMC/Contents/Resources/XBMC/system/library/video_flat

The result is interesting: the menu item now displays the playlist just as I want it: recently added and unwatched (why would I want watched movies at that place? imo the default should be changed?): http://cl.ly/image/1O420p2t371O > http://cl.ly/image/37122u3x2x0h

But at the top I still see movies that are watched (tron in this case): http://cl.ly/image/3z2T3s1a450t

If any dev runs accross this:

1) How can I change the top as well?
2) Could the default be changed to only display unwatched? I think that makes so much more sense.