Hi guys, thanks for all the replies.
It's the next day here (UK) now and I still don't have anything, and my account is still reading the same - here's a link to the blockchain transaction (the link provided by multibit)
https://blockchain.info/tx-index/58784a85d18aa6ecf94c842c9ba8d1fca105fd570b4ccf767cce8b76045d0fffWhat I don't quite understand is all the different amounts listed there - my transaction is the 0.054 bitcoin one, not sure where all the other figures come from unless they are just the other transactions which took place in the blockchain around the same time?