IF YOU RUN THE TDS ON A BOX WITH 1GB RAM OR MORE AND EXPECT HEAVY LOAD - DON'T FORGET TO TURN OFF REQUEST QUEUE IN SETTINGS (MENU TOOLS -> SETTINGS).
The control panel of the TDS is self-exaplanatory. The menu on the top of each page is used to access TDS settings. You can switch interface language by clicking on country flag in the main menu. To log out from the TDS hover your mouse over your login in the upper right corner and click 'logout' in the drop-down menu.
To check if your TDS can access license servers and if your license valid navigate to the main page (click 'BossTDS Dashboard' in the menu) and click 'Validate license' button.
You can always check your system info by clicking 'System Info' on the main page.
There's a builtin help on each page of the TDS. In every editor there's an 'Hint' section - click on it to read a short hint on the editor as a whole. Also there are green question signs at many fields and properties - hover your cursor over these signs to read help on this particular property.