You will now see the security manager screen there are 2 areas, which are selected from the tabs
1. Items- Manage security on SSRS Items eg folder, report, data source etc.
2. Roles- Manage roles configuring their tasks.
The enterprise version has the following tabs:
1.Items- Manage security on SSRS Items eg folder, report, data source etc.
2.Roles- Manage roles configuring their tasks.
3.System Roles- Manage system roles configuring their tasks.
4.System Security- Manae system users and groups
5.Audit Report- audit report giving security snapshot.
Note in addtion