On this site have brought together all you need to get started an this really fun game. first you need to download the free mirror and UO gateway from the downloads link. then for UO game assistance download the .net framwork and Razor.
After you have all that downloaded you will need to find a shard. There are thousands shards to choose from, however if you are looking for a quieter shard to pick up learn the game I have put together a new one with alot of help for newer players. click the site marked My Shard.