Need help for NuSOAP

Hello friends,
I'm developing a webservice using NUSOAP package, actually my task is to recieve the Notifications send by eBay, the notification send by eBay is in SOAP format, and I need to manipulate the data send by eBay and on the basis of these information I have to update my database. But eBay didn't send any notification in the testing period it only sends in the production period, so for this I have to develop both client and server for, I completed the the client side scripting successfully by using the same NuSOAP package now I'm able to send the SOAP Packet as eBay will going to send, I send this packet to the server and the server respond it successfully, my server just returned a string. Now my problems are

1. I don't know the method to process the request at the server side.
2. Even I'm not shure whether this server developed by using NuSOAP library works fine when the eBay sends notification

hope u'll understand my problem and respond me soon
thanks with regards
Sachin Tandon