[Google-Desktop] search on Microsoft Office SharePoint Portal Server 2003

How do we make google desktop to search a Microsoft Office SharePoint
Portal Server 2003 folder ?
When I click on "Add Drive Or Folder to search" , I get a window where
I see under mynetwork places , the share folder

For example
ORACLE on sps.sreesg.net

When I click on the link , I get a message "Invalid Path"

It is highly desirable to have the serach tool encompass the Shared
point Server as well!