facbook conversion tracking

[tycoons]

hi the team, 

I need your help to integrate the tracking facbook. 

I read a lot of post on the topic but I had to miss something

I took an old post that said to change the page and ordercontroller orderconfirmation.tpl so I Procer her but it does not work the link of the topic that I followed

http://www.prestashop.com/forums/topic/322749-facebook-tracking-pixel-conversion-prestashop-149/

it was for me I have version 1.4.9 1.5.5 but its should be almost the same thing a little help thank you all for your help if you Vekia passes by