I don't know, but you might want to look at someone who's got a similar problem over here:

http://talk.maemo.org/showthread.php...184#post931184

Oh, wait. that's you.
Double posting won't get you help double fast, you know.

Why don't you tell us the setting you input when you tried to re-create the entries for the default application catalogs so we can verify that you input the correct values?