Webdynpro Configuration For ides system

Hi Experts,

Please help me,Basically i am ABAPer.

I want work on webdynpro in my system,for that i was activated sicf component,

When i was run test service it showing THE PAGE CANNOT DISPLAY'.for that i had been some of the instalation people,they are tell reinstal the entire system.

Really is it required or not?

Please guide me what are the steps (configurations steps) are required to run the webdynpro application.

Pleashelp me.

Thanks&Regards

Krishna Boyalla