You're welcome to look at mine for some tips Claire. The only thing is mine is not purely for livery - it covers all of my little enterprises, but I'm sure you might be able to pick up a couple of ideas at least.
I'm looking at the websites and then sending the links to a friend who is designing my livery yard website. I'm very lucky as he's a professional computer expert thingy
this is the link to the yard I keep my horse at - the only thing I would say is it could do with an 'about us' page, to inspire confidence in visitors. Good luck with your site,