Hi Andy,
And a warm welcome from me to WAB, its a fantastic site, and everyone is friendly and will help you get your mushrooms sorted out ,
Go to the "Fungi" site on WAB and ask the question in there,Most likely they will advise you to seek out a local group to go out with to learn first hand, it can be awkward to try and ID fungi from just a photo since their are some poisenous lookalikes,
Hope you enjoy the site,
Duncan