I Just Bought A PS3 Slim And Ive Got A Sub Account But I Cant Find The Facebook Icon Under Account Management?

Basically, I just bought a ps3 slim two days ago and i wanted to post my trophies on facebook, But the thing is that i cant find the facebook icon under account management or in account management. Is it because I have a Sub account, not a Master account? If not, what should i do?? Do you HAVE to have a Master account to post your trophies on facebook from your ps3? Please help!|||have you tried accessing it through the master account first then going to the sub account|||have you update your ps3 if not then you need to do that and it will appear