Sharepoing Oracle OID

All,

i am a complete novice to the asp and sharepoint world. However my strong area is on the oracle side of the world. I have a couple of questions, any pointers to them will be helpful

1) We use sharepoint allowing access to external users. External user password is stored in aspnet_membership tables. What are my options for allowing users in Oracle Single-sign on to access sharepoint data ? Everywhere i read it said Oracle OID will allow for integration with AD, with sharepoint using database to store user credentials, is OID still an option ?hat i

2) In single sign-on, i tried to register sharepoint as an external application. When i click the application, i was hoping that it will take me to the single sign-on page, but instead, its taking me to the sharepoint application login page. What am i doing wrong ?

user name field was set to : ctl00_PlaceHolderMain_login_UserName

Password : ctl00_PlaceHolderMain_login_password

Thanks.