Hey...

I'll tell you what we did for our two kitties...

We left out one pouch each topped with biscuits in the morning with water. When we got in at about 6-6.30pm a pouch between them with biscuits and the same when we went to bed, changing the water each time. If you are worried you could always leave a separate bowl of biscuits out.
I also saw your other post on treats/milk. Make sure it is kitten milk. However, we didn't try that as some people said it can upset their tummies.
As for treats, I think we waited until they were about 6 months. We give them nature's menu treats at the mo and haven't tried any others.

It is hard to gauge the food, especially with our 2 - i.e. one boy and one girl. The boy eats aloth more than the girl and sometimes polishes off her food!