I don't know about those specific sites - it depends on whether it crawled it at any point in its history. In my experience I've found most sites have at least one date available to view. As for using the website:
1) Go to archive.org/web/
2) Insert the url of the website you want to reach into the white text box near the top of the webpage.
3) Click the grey box that says 'Browse History'.
4) Select a date from the calendar. You pick a year by clicking it on the timeline scale, and then can select any day that's highlighted on the month-by-month calendar that will show for that year.
> If the site was archived multiple times on that day, it may come up with a selection of times to pick from. Pick the time of day you want.
5) Browse the site as you wish!
On lots of sites, the images, videos and audio files won't be accessible. You may find a lot of Flash stuff that doesn't work any more, too. For primarily text-based sites, it's fantastic and you can usually click on every link. For some sites there won't be any saves, which sucks. For others you'll be able to track the progression of the website from its origin to death! Have fun out there, I hope this explanation helps. | 
