Only v2 and v3 are available. And v2 will go away in the near future.
Chess.com's Versions 1-4

But you can see what it was like http://web.archive.org/web/20071111134414/http://www.chess.com/news
Only v2 and v3 are available. And v2 will go away in the near future.
So if v2 is available... then why is this site.... I cannot log in?
But you can see what it was like http://web.archive.org/web/20071111134414/http://www.chess.com/news:

on v2... (wayback machine) i can't sign in!
You won't be able to go through that site to log in. They only show the way the page looked at the time of the snapshot. Things the site links to on the back end may not exist anymore.
If you want to use v2 you'll have to use the link in the menu here.
uhm... sorry... where here??
Which Version Do You Like More?
Version 1? Version 2? Version 3? or the latest Version 4?
I got on v2 yesterday with no issues.
right now, it's already a month ago but really?! you registered!? uh... how and where?
(the person typing is just a kid; 10 years old)

I got on v2 yesterday with no issues.
right now, it's already a month ago but really?! you registered!? uh... how and where?
(the person typing is just a kid; 10 years old)
I logged onto v2 yesterday too, with no issues. There is an Old Chess.com menu item on v3.

Vote for your favorite Chess.com version.
https://www.chess.com/forum/view/general/which-version-of-chess-com-do-you-like-v3-or-v2-vote-now
Is it allowed to go back to Chess.com V1? V2?