WebDynpro View Layout Preview Problem

Hi experts,
    I'm newbie in Webdynpro ABAP. I'm trying to develop a WDA application. Our servers are upgraded recently from 4.6C to ECC 6.0.
    When I incorporate view and go to layout tab while developing, the system gives me proxy error, page can't be displayed.
    I've gone through the related notes 1008689 1009930 and 517484.
    I've activated all the necessary service through SICF as mentioned in note 517484. Also Implemented correction of the note 1008689.
     Still I'm facing with the same error.
     What is HTTPPURLOC table ? How to configure it? I'm not understadning its documentation at all.
Any idea about this ?
Naimish
     Any idea about this?

Helo All,
we are at ECC 6.0, SAP_BASIS - 700 - Level 9.
I have activated all the services stated in the notes 517484, 1088717, I also implemented note 1008689.
When I am trying to display the view layout I am getting message No active plug-in found and the layout page shows like "The page cannot be displayed", so here I am not able to add UI elements.
I am not sure what else I am missing here.
I will appreciate if any body can help me out in this configuration.
Please send me if any body has config step by step guide
I am not sure about the port and other stuff.
When I click on the message No active plug-in found colud see the below more details.
No active plug-in found
Message no. SWDP_WB_TOOL299
Diagnosis
No active plug-in was found.
System Response
No active plug-in (HTTP in this case) was found.
This is caused by the system's configuration:
ICM may not have started
No services may have been set up
An error may have occurred
Procedure
Check the
ICM (Transaction smicm)
Services (Transaction sicf)
SysLog (Transaction sm21)
Thank you.
Regards,
Thiru

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