You can also do a search on 'giganews' on youtube for more information.
Then depending on your ISP, they may a newsserver that carries binary groups though the chances are even if they do then most likely they will only store posting for a few days at best.
You could sign up for a trail account at giganews which will get you 3gb download limit I believe. You will also need to get the NZB file which can be gotten from v3.newzbin.com.
It is a big change and I found the ribbon concept hard to get used to as well. I hate to think what the support calls are going to be like at work when we deploy it to 60,000 users.