Most file based applications such as Explorer have a SORT BY feature. Outside of photo album software, almost all the others sort by some filename or file attribute. You need to see what sort options there are and then use that.
I am using HIZ (HP Image Zone) software to transfer photos from the camera to the PC. I want to be able re-order them easily using this or other software so that i can burn to a CD. The only way i've discovered to do this in HIZ is by laboriously renaming all the photos. A 2nd way I tried is using Windows Explorer and dragging the pix into a new order. This seems to work except when I "grab" the pix using the Ofotonow application for uploading, it automatically re-orders them by numerical order again.