Anyone using premiumwebservices Order Listings by Package ID. Not working.

Hi, I’m using the plugin Order Listings by Package ID by Premium Web Services (Richard Bonk) but it is not working for me. I’m using BT 6.6.7 and it works ok on the 1st page but if you have more than one page for a search or category listing some listings are duplicated on subsequent pages and some listings do not appear at all, though the correct number of results are shown.
Also it changes the order of normal posts (as opposed to listings) to random rather than leaving them as most recent first.

I’m getting no reply from support on the premium web services and have had to switch off the plugin as it is unusable due to the problems above.

Has anyone else used this plugin and is it working ok for you?

Has anyone found an alternative way to achieve ordering by package?

Any help would be appreciated or if Richard is around that would be better.