BW style sheets not being seen in Portal

Dear Friends,

We are on EP6.0 SP14 and facing a problem in displayig a

BW Report in Portal..,The BW Team they are designing a query using WAD and they are using some style sheets

(Ex: Sage_BIReports.css) for look and feel as per client requirement also.., t their end its working and displaying with style sheets., but we create an iview and displaying in the portal its not taking style sheets its taking the BIReports_ie6.css for all iviews ..

Could u plz help me any one ..

Thanks in advance........

Sreedhar G