Just to help anyone else who comes across this post and thinks "how the heck do I work w/ this SOAP_WSDL thing?" (like myself)
Open the command line and get to your php directory (I installed XAMPP Lite in this example)
Once in the php directory I ran the pear.bat script. After this I was able to type the following via cmd line
pear -V (provides the version of your install)
pear list
If you type the above and don't see SOAP you need to do the following from the cmd line:
pear install Net_DIME-1.0.1
pear install Mail_Mime-1.5.2
pear install Mail-1.2.0b1
pear install SOAP-0.12.0
Now after you install these packages and do another "pear list" you should see SOAP listed.
If so you can include a reference to the php files pulled down inside the pear directory under SOAP.
One example of this path might be C:\xampplite\php\PEAR\SOAP