Help with laptop please?

i got a new laptop and i cant use the f keys and i cant find the num lock key. i cant use the f keys becuz there are already controls ont hem (for example f2 and f3 toggle the brightness). can i turnthis off? and wheres the num lock? a href="http://www.notebooks.com/2010/08/09/hp-g62-234dx-entertainment-notebook-with-lightscribe-technology/" rel="nofollow"http://www.notebooks.com/2010/08/09/hp-g…/a thats what my laptop looks like if one of u happens to have it