WPMU Multisite Problem

Hi we have a full subscription to WPMU and installed on our amazon server, we have multisite system, we are trying to install to WPMU dashboard to our pages, but we cant. WPMU dashboard is only activated on the main page. Then we have subdomains that we want also WPMU dashboard to be installed ( they are all different websites ) when i go to plugins page, WPMU Dashboard is NetworkActive and when i deactivete it from Network it says that the plugin is NetworkOnly so i cant install on the subpages. We tried to do it from WPMU webpage panel. But we cant do it either it says you dont have permissions or giving some fails. Can you help me with that how can we install the WPMU dashboard in multisites. NetworkActive is but its not showing other pages just in MainPage-