XCELSIUS 2008: URL UNABLE TO UPLOAD

I am using Xcelsius 2008 version, now want to connect it to the live data through a Query As A Web Service. I thoroughly study the tutorials but whenever I generate the WSDL link on the QaaWs and take import to it inside xcelsius it shows 'URL unable to Upload'. But, sincerely I tested all is Okay. Please somebody resolve this issue..
