before you start you need to sanitise the brewing vessel & whatever you're going to be stirring it with. If you don't have any sanitiser (e.g. VWP, Chempro SDP, Starsan) then a thin bleach solution is fine. Just remember to give it all a very good rinse
but other than that, just follow the instructions - except the bit about how long it takes to ferment, that's usually VERY optimistic.
loads more help at Jim's Beer Kit forum
is it a Coopers kit BTW? They're pretty good for a one-can kit, but the two can kits make a nicer brew IMO. not as good as All Grain, but way better than the really budget end kits