Focus - Add Traction Control - possible ?

Hi,

I have a ford focus 2006 1.6 Zetec Climate, it has all that I want apart from 'Traction Control' , can anyone tell me -

1) is it is possible to buy a traction control Kit ?
1a) if so would it be hard ot fit ?
1b) any ideas on how much one would cost ?

Thx
Stef.