If you want to use pictures from About Us page you need to buy this licences:

About Us Page

Smiling Young Business Man - http://photodune.net/item/smiling-young-business-man/216592
Celebrating success - http://photodune.net/item/celebrating-success/658118
Business woman texting with team in background - http://photodune.net/item/business-woman-texting-with-team-in-background/658738
Smiling Cute Business Woman With Colleagues At The Back - http://photodune.net/item/smiling-cute-business-woman-with-colleagues-at-the-back/202687