[joe_44850]

I wrote some code that does it. Basically, you tell the program where the directory is that contains the html files you want to turn into png images. Then, you click on "Go", and the code takes over. Here is how it works:
the code launches IE and grabs up the first of the html files. Then, the code does a screen capture of the browser. It then converts the screen capture into an image, crops it (according to values you have set up) and saves all of the images in a directory called 'cardimages'. After doing the screen capture, the browser is closed, and then does the entire process again until it has gone through each html file. It takes about 3 - 5 seconds per image.

If you want to try it out, you can download and install the utility. You can pretty much assign any folder for the png creation.