Hi - I think I'm the only other person alive on this thread. I'm not sure I can help you with this, as I've got the date display disabled on my site so I've not had to look at this yet. I think you need to be looking at the newsdesk_listing.php file, around lines 124-127. I can't be more specific - the code is particularly impenetrable, and I'm no php coder by any means!
I'm having trouble with changing the order that the news information is displayed on the same page you're having date problems with - at the moment it's summary - image - title, when I want it to be image - title - summary. I've mucked around with the code in newsdesk_listing all day and not got anywhere. How did you do it?
The guy who developed this module has also done loads of other stuff, and I guess he just doesn't have time to support this and the other bits he's done, I've not seen him in this thread for over a year. Good luck, anyway!