The statbox template is used to display a player's stats by parsing data from a specified target.
where the hiscores are retrieved from a subpage of your userpage. Simply put the data from http://services.runescape.com/m=hiscore/index_lite.ws?player=X (where
X is replaced with your in-game name) on a subpage of your userpage, and then transclude that data into the statbox. Alternatively, you can put the data directly in the first parameter.
Copy the code from the example above and paste it where you would like it to be shown. Replace Example with your username.