Configure cognos 8.4.1 with IBM websphere6 X application server

[Desperado]

Hi,

I'm trying to configure cognos with IBM websphere application server. everything was correctly deployed but somehow the websphere application server couldn't start cognos... So, i didnt see any tables created in the content store database or the cognos welcome page.
Do i need to take anysteps while building the p2pd.ear file.
does anyone have a installation doc or something...
I tried cognos support but they are clueless about it...
please do the needful

thanks in advance