Not able to login to WebDynpro Admin Console

Hi,

We have implemented NW04 SR1 Portal and ECC 5.0 on the backend.We have also implemented MSS(webdynpro)business package on the portal.My SLD is on ECC 5.0 server.

I was configuring the SSO for the Webdynpro.By mistake,I had changed the login module stack and Now,I am not able to login using the admin account.

When ,I am entering the userid and password. its not letting me to go to the next page.Its showing the same page again.

Any suggestion?

PAritosh