About an hour ago I entered my credit card number to go from a Beta user of the API to a paying user. So far my app doesn't seem to be working. I'm wondering if the documentation is up to date.

The documentation still includes "beta2" in this line:
$wsdl_url = 'http://planexml.flightwise.com/ws/PlaneXMLbeta2.asmx?WSDL';

Could that be the problem? Is there a new string to put in there?