BuddyPress.org

I’ve just installed and set up Buddypress on a brand new WordPress install. I have 2 issues. One is that as i am logged in as the admin I don’t get a “Site Admin” Option below the “Buddypress” button on the left menu, as i’ve installed an auto group setter plugin but i can’t set the auto group up without that option. And issue 2 is that i have installed the sharing documents plugin to allow people to upload files. Is there any way to allow people to download / view these files as currently its coming up with a 500 internal server error.. is it a problem on my server or is it something i’ve missed?

Any help would be great.