Hi Adnan,
There is a very good tutorial posted by Arafat Farooqui,where he explained step by step how to create a simple BPM Process,Create Web service using WSDL and trigger the webservice from Web Dypro Java Application.I have followed this tutorial to start BPM Process.You can check Part 4,5 & 6,if it is helpful for VC also.
2)Part 2-http://scn.sap.com/people/arafat.farooqui/blog/2009/08/03/introduction-to-sap-netweaver-bpm-part-2
3)Part 3-http://scn.sap.com/people/arafat.farooqui/blog/2009/08/11/introduction-to-sap-netweaver-bpm-part-3
4)Part 4-http://scn.sap.com/people/arafat.farooqui/blog/2009/08/13/introduction-to-sap-netweaver-bpm-part-4
5)Part 5-http://scn.sap.com/people/arafat.farooqui/blog/2010/06/23/introduction-to-sap-netweaver-bpm-part-5
6)Part 6-http://scn.sap.com/people/arafat.farooqui/blog/2010/06/23/introduction-to-sap-netweaver-bpm-part-6
Thanks,
Patralekha