The question came up: "what's an easy way to scale my images for a podcast?"
The SSA command line has not be discussed at all, and "ssa -help" does not give you all that much help! So, to answer this question quickly (it probably needs a tutorial) look at this:
ssa -dp out -irc -iz 300 200 *.jpg
Assuming you are in a folder with one or more .JPG files and there is a subdirectory named "out," this command will take all the .JPG files and scale them to 300 x 200 pixels and place the new files in the "out" folder.