Okay, so I've helped Roushk and am trying to get all the cg scenes from him, but all I'm stuck with, is the part where he lays down on the hay. Can anyone help on what I should do to get the second one?

The thing is when you first met roushk you had 2 options, I am not sure what were they but there were 2 options, you can get one by selecting one option and the other scene if you select the other option. If you didn't save during the 2 scenes then I am afraid you cannot do anything to get the second cg scene. Or if you are planning to start a new game, you can then select the second option. You can refer to the guide provides for futher details

yes, it's all a matter of your choice in the barn when he wakes up, you get either the top or bottom variant, gotta reload a save before that to see the other one