In order to contact sellers, you will need to register, but it is not required. Registering allows you to have your own account where you can save your favorite horses and searches.  If you have saved searches, you will see them on the Advanced Search screen (or in your Account) and be able to re-use them by simply clicking the GO button on a named search.  Your account allows access to both DreamHorse.com and our TackTrader.com sites.