considering how easy it is to use, and that it is, IMHO, ideal for a beginner to PC's, your useage, on the front page, of the phrase;
"You will find a long list of command-line parameters"
is perhaps a little scary.
I don't disagree at all with what you have written, but I feel that this is little more prominent than need be.
I realise I'm nit picking... please don't be offended!
Co-incidently, I, just yesterday emailed the author with a couple of suggestions;
a button for "aquire", and the ability to have the thumnails window open to either maximised, or a size of the users choosing.
Great work, both of you,