Ok guys so i tried narrowing my grip and see if it's better. I still don't think i've got the whole elbow tucking thing right but take a look for me.
Bench with just the bar
http://www.youtube.com/watch?v=iWKgbNDNHjM
Bench - 60kg
http://www.youtube.com/watch?v=HrFgN5sAGJA