BuddyPress.org

I have found that logged in users (normal users) are getting redirected to dashboard instead there profile/recent activity. how to disable this dashboard for normal users? I am making a social networking site so in social networking site people aren’t redirected to backend…..moreover, people might get redirected to members tab. how redirect them to profile/recent activity? I also want to add “recent friends” tab and some tag-like feature we can see in twitter.
moreover, I want to add photo upload feature with built-in photo filters for users to apply them before they get their pics posted. how to do that?
also i want to remove this participant thing below the profile as we can find on this site.