Although reservations on line are available 330 days out a phone call can find an award 352 days out.
The definitive method of snagging hnl awards was written by socrates some time ago. Someone else can do a search and find it.
Basically (and I have used his method for other hard to get awards) you get your award for any date and then once you have a confirmed award you are permitted to wait list for the dates you want.
The downside is your date doesn't ever open up (hasn't happened for me yet) and you have to redeposit. The upside is when the date does open up you get it before it is ever even posted on to the web-site.