Not to be one of those annoying people who answers questions without answering, but you might consider finding a different newsreader than Lookout!
Assuming you're on Windows, a lot of Windows people seem to like Forte Agent / Free Agent...
I've heard good things about Xnews as well.
If you're on a Mac, there are some good newsreaders available for that platform as well.
I can't answer your question directly since I don't have Outlook, but perhaps you could let us know what you're having a problem with so far, and what settings you're using....
Also note that DH doesn't offer NNTP service, so you'd need to use your ISPs NNTP server, or that of a third party like supernews.
I have a supernews feed that comes with my speakeasy account, and it works pretty well (btw, if you need a great dsl provider, I've been pretty happy with speakeasy so far).