Hi xspdr.
Your path for the websocket is wrong (that's what a 404 means). It should be 'wss://ws.bitfinex.com:3333/websocket'.
You will almost certainly need to go through the js on the site to see how to connection works, this is very unlike okcoin, and there are several steps involved in getting this working. I'd suggest actually that you wait for the "official" websocket api to be release (along with documentation) - it can't be very far away now.
Note: what I've said above still stands as far as I know - the orderbook this gives is still incomplete. This is why no one uses it.
Please don't PM me your questions again.
thanks
Edit: and then he goes off and deletes his post so that my reply is pointless. Thanks for that dude.