Adding Web Part to a SharePoint site
Go to SharePoint site where you want to add the calendar and open “Site Actions - Edit page”. You will switch to edit mode.
Click “Add a Web Part”.
Select Virto JQuery Tab Navigation at the bottom of the list and click “Add”.
Once you have clicked “Add” button, use “Exit edit mode” button.
Added web part will be displayed on page. To adjust it, go to web part settings.