The current version 0.4 uses http://api.browsershots.org/xmlrpc/ for the screenshot factory API. You should install a package with "0.4" in the name, or check out the trunk from Subversion.
686.
The price for priority processing is <em>$%(month_price_usd)s USD</em> or <em>€%(month_price_eur)s EUR</em> per month.
687.
There is a dialog box in front of the browser window.