Just thought I'd post this workaround for my dilemma mentioned previously. It only applies to those of us who use the "sold-out" Button mod.
Instead of trying to get Printable Pricelist to sort for Product Quantity (which it can't do at present) try the following...
1.Make sure to choose to set "stock on hand" to true.
2.around line 33 in your includes/languages/english/pricelist.php file add a notice telling customers that a "1" denotes In Stock and that a "0" denotes Out Of Stock.
If anyone wants to have a look ...
http://www.allnatives.com.au
Cheers.