Is there an easy way to delete selected pictures from a gallery folder?

I've got a bunch of pictures from stuff I sold a while ago and wanted to clear them out of my NSXPrime Gallery folder.
The pictures are located here:
http://www.nsxprime.com/photopost/g1140-for-sale.html

and I would like just to select a few and just delete the items already sold. Is there an easy way to do that? All I can see is just to delete the whole folder..

I don't think so. But you can delete entire folders and all the photos in a folder with one command. So if that's something you're likely to do often, you could break the for sale stuff up into groups in different folders, maybe by month or something, then just kill the folders when the stuff is sold.