Custom Thumbnail Sorting

[mwmg]

First ... I apologize if this question has been asked, but I've searched the boards, and haven't found an answer.

Second ... I'm using Coppermine for a modeling agency, and would like to provide a custom sort on the thumbnail page.  Right now I'm using the standard Title and Date (renamed First name and Date added).   I would like to create a custom sort on the thumbnail page for "AGE".

Any input would be appreciated. 

[Nibbler]

See http://forum.coppermine-gallery.net/index.php/topic,28084.0.html