Very nice app, awesome that it's free. Works pretty much flawlessly.

I discovered that sometimes when it doesn't quite get the picture you want (since it has to actually load the url you give it again, and sometimes it loads differently in the paparazzi window), there is a trick.

1) save the webpage that you want it to take a snapshot of as a webarchive.
a) I only know how to do this in Safari, all you do is press command+S, and save it to your desktop as a web archive. easy.
2) open up the web archive in safari, and copy the location (it will be something like "file:///Users/Desktop/blah.webarchive")
3) put that location in the paparazzi URL box, and it will load exactly what you saved as a web archive.

I hope that somebody finds this tip helpful!
It's a great app!