Printer defaults to oldest entry instead of newest

What code should I look for in my printer program to tell it to search for the newest entry to print, rather than the oldest?

And how should the code be modified?

(I’m using WP-Print plugin. My website is http://voiceofbaltimore.org — which displays five stories on a continuing basis; I want the printer to default to the newest of the five instead of the oldest.)

Would appreciate help if anyone knows how to fix this. Thanks.