How send data from Salesforce to SAP???

Hi,

i want to send some data from salesforce to sap. Therefore i have to create a server proxy in sap with the wsdl file which was provided by salesforce. My problem is that i can't find any possibilities to create a server proxy for my Web Service in NW Developer Studio. In eclipse i have the possibility to create server proxies so i don't understand why it is not possible in NW Developer Studio.

1) If it‘s possible, how can I create a server proxy in NW Developer Studio?

2) Until now i have no experiences with XI, so is XI the only way to create a server proxy in order to connect Salesforce to sap?

regards,

Sharam