What you need to do is: Walk along then stop with your feet level but not together and try and notice if you feet point slightly inwards or outwards. When setting up a cleat up trying to replicate your natural foot position. For example if your feet point slightly outwards the cleat should point slightly inwards (towards the crank) in order for your foot to still be in it's natural position. You can also move a cleat forwards and backwards, This is to locate the ball of your foot. If possible when learning adjust the spring tension on the pedal wich holds you in to a loose setting till you get used to them. Another important thing is to grease the threads on the shoe before screwing in your cleats.