Yes. For the foreseeable future, there will be free screenshots for everybody. You may have to wait in the queue when there's a lot of demand, or you can buy priority processing.
13.
This is possibly because you enabled 32 bits per pixel on the factory details page, but this bit depth is not supported by the VNC server.
14.
The best solution on Linux or Mac OS is to create a simple shell script with your desired options, make it executable (chmod a+x), put it somewhere on your PATH and then use the name of the shell script as the browser command.
15.
Sometimes the automatic scrolling doesn't work. The reason could be that your page uses frames, or that it sets the keyboard focus to an input field with JavaScript.
16.
Link text or alt text is incorrect.
17.
That's because the /RPC2 interface was for the old version 0.3 of Browsershots which moved to http://v03.browsershots.org/ for historic reference.
18.
Please check out the <a href="/documentation">Documentation</a> and <a href="/faq">FAQ</a> pages for more information.