Okay, thanks for the advice, I have started weighing the babies, and they are deffinatly putting weight on, so I'm less concerned about that, they also have nice round tums!
Roxys appetite is getting better, she loved the chicken yesterday! I went out this morning and got her some (adult cat) delux type meals, one chicken one liver, she is eating the chicken one at the moment much better than she was eating her kitten pouches, so I think she is just getting a little fussy.

I was going to do her some chicken again tonight, but I wasn't sure if it was a good idea, when I looked on the ingredients of tin/pouch cat food, they all seem to contain other stuf (ie carbs) aswell as meat.
Should I maybe try and mix some rice or something in with her chicken to try and give her a complete meal. Or as she eats her dry food, will that cover that aspect?

As for her poos, they seem to be getting a bit better, so I will stear clear of the milk, wouldn't want to make it worse.