How to log on to BI_PUBLISHER using superuser

Hello

We  are  running Oracle  business intelligence PUBLISHER    11.1.1.7.0 , I  have  been  working  to integrate  BI_PUBLISHER   with  Active   directory,  the  authentication in active  directory  is   failing,  Now 

I need  to  logon  to  bi-publisher using  superuser  in order to change  security  model  to  BI_PUBLISHER ,  superuser  is  supposed  to use  local authentication   however   when I  capture  the  superuser  credential  I get  the  error  from  active  directory,  How  can I  get   to logon  to  BI_PUBLISHER  using  super user  credential and  letting  BI_publisher  that is not  an  active  directory user...   

Thanks  for  your  information...