Does 

http://www.webservicex.net/CurrencyConvertor.asmx?WSDL still exist?  When I try to find 

http://www.webservicex.net/CurrencyConvertor.asmx?WSDL, I get a 404 page not found error.

When I try to open the project from the downloaded tutorials, I get 'WSDLException (at /con:soapui-project): faultCode=INVALID_WSDL: Expected element '{http://schemas.xmlsoap.org/wsdl/}definitions'.

I am using Soap 5.4.0

Thank you for any help