Cracking a code

[MilksAreUs]

Hey guys, been set a little task. Ive got to crack the codes http://i60.tinypic.com/2zoj5mf.png here. However im not sure how to do it, so would you guys be able to help me?

[scottish]

is that all you've been given

'codes', is each line supposed to be a different code?