Once you are connected to the LDAP database, you should see a tree of all the sub entries of the Root DN you selected.
If you want to expand an entry (in the case of this entry has subentries) simply double-click on it.
If you want to see an entry properties click on it. The properties (attributes) will appear in the right pane of the browser.
Each entry can have one or more values. To see these values, click on cross at the left of the attribute.