Hacker News dataset?

Coming out of lurking to ask if there is any archive of all the HN submissions from the beginning. I can get the newest ones from the Google Reader RSS archive - but I'd like to look at the older ones. There were a few posting of the dataset a year ago, but the download links have expired. I'm grateful if someone can reupload those datasets or a newer up to date one if it exists.

Thanks!

P.S. Is there any guidelines on how to crawl news.ycombinator.com in an approved way.