No.
Alpha is a early/outdated version of the game and you'll be given the latest version of the game once you download the client from minecraft.net
Not anymore. You could possibly find a download online but you cannot obtain it legally. Unless you have a backed up bin folder.
Yes.
The regular download as of Minecraft 1.8 is the Beta Minecraft. The last Minecraft update I believe will be the "Final" product and official game and no longer be a game in Beta.
Go to MINECRAFT.NET and log in. Then, where it says Minecraft Beta (in browser/download) Click Download... Then, you download it like any other file, and log in... And your in!
Play it online or download it.
no you need minecraft beta to play beta servers
You can't play minecraft alpha 1.2.6. You can currently play minecraft beta 1.8 if you buy the game for $21.95 and then play it in the browser or download it to your computer and play it in an application. Alpha 1.2.6 is long gone, and it is not able to be found anywhere, as far as I know.
No. As with any other version of the game (except for Minecraft Classic), you must buy the game to play it.
Minecraft beta is not free, you have to pay to play it. Any website attempting to give you Minecraft for free is illegal. If you find a site like this do not download anything from it as it is not only illegal, but may contain viruses.
The beta version of Minecraft was released on December 20, 2010.* * Minecraft-beta came after Minecraft-alpha, but before Minecraft 1.0. You can play Minecraft-beta with the new launcher.
Yes, and you do not need to buy the game either! You just simply download HamachiX and use that to play on a server(or create one). Note from snowmon6: Why didn't anyone tell me that?!
You can join the Minecraft Pocket Edition beta group, via a Google+ community. You can then go to the Google Play Store and sign up for the beta program, then download Minecraft, if you haven't done so already.
You can't. it's in close beta and only registered tester can play and download
There is a program called Minecraft time machine (or something like that). Download that, and you can downgrade/upgrade Minecraft. You'll need a legal version (you paid for it) of Minecraft for it to work.