BuddyPress.org

I am working on WordPress Multisite.
My WordPress version is 3.5.1
BuddyPress version is 1.7.2 , IIS 8 , SQL Server 2012.
I am using wordpress-database-abstraction for using SQL Server.

BuddyPress related pages are not showing any content except page title and date.
Links for these pages are like “http://localhost/wp-sqlsrv/index.php/activity/” ,”http://localhost/wp-sqlsrv/index.php/groups/”

But if I change url in browser addressbar to “http://localhost/wp-sqlsrv/activity/” then all content are shown.
For this I tried to change the permalink structure.
When in custom structre option I set “http://localhost/wp-sqlsrv/blog/%postname%/” and click on save, It is converted as “http://localhost/wp-sqlsrv/blog/index.php/%postname%/” autometically.

Why this is happening? How to overcome this problem.
Please anyone help me.

Thanks !