I downloaded a copy of stacking software CombineZm and it has given me a few images I could't have gotten otherwise. It hasn't worked on everything I've tried but it has been perfect on some. Bang for the buck, it can't be beat. Free shareware and the writer even wrote me a custom macro to do a some different things. Google "CombineZM download" to get more info.
I posted a few examples of the individual images and the final "combined" image to one of my pbase galleries linked below. The rose picture was shot off a tripod, the white flowers where simply handheld "snap shots".. Hope this is useful to someone. Check out each frame closely then look at the final frame. These where all done with default settings in the program, not even scratching the surface of it's real capabilities. Two clicks to load the files, 2 clicks to combine them and on more click to save them. This was the "easiest" to perform "special effect" I've ever used. Arlon
CombineZM_examples