Looking at the results (Quick tour).

From your browser, select the URL for the OverTime host, OverTime’s Virtual Root directory and then index.html.

Click on the system name link for the device you wish to view from the list on the right of the page. A page showing the current information for all the items being monitored on that device will appear:

To view historical information for any individual interface or instance, simply click on the title or the graph for that interface.
A page showing the current information as well as various historical views for that item will be shown:

To go back to the main menu, click on the link at the top or bottom of the page (Not shown here).