I found this website which, although is a shop, also has a page with a huge list of "how to" guides. We used the "how to lay a new lawn guide" ourselves and it was very easy to follow.
We have also used the raised border one and are now planning to have a go at the play area one for the kids while they are off over the summer.
Have a look and see what you think. The guides are written in very easy to follow laymans terms and are all free.
I do love a freebie!

http://www.dandystopsoil.co.uk/

Danny