You have to buy the game www.WorldofWarcraft.com keeps track of all the keys. once used on an account it can never be used again
You don't have to have a special account, but you have to of made a regular World of Warcraft account and have the Burning Crusade with an unused authentication key.
If your WoW account got banned and it is permanent then you will need to buy a completely new account from a retailer like walmart or bestbuy and if you wish to have The Burning Crusade enabled on the account you will have to upgrade it which can be done online now I beleive. But you will need to upgrade the account again. In addition: you also have to purchase a new burning crusade key
You cannot end a Burning Crusade trial, but why would you need to?
When you purchase World of Warcraft, you automatically receive The Burning Crusade with it as Blizzard recently merged the two. There is no more free trial for Burning Crusade.
If you upgrade from basic wow, to Burning Crusade, yes, you get a free month. Same goes for if you upgrade from Burning Crusade to Wrath of the Lich King.
If you have an original World of Warcraft CD, you will also have the required serial key plus the key from The Burning Crusade. If you create your battle.net account, you can add these keys (and thus their accounts) to your battle.net account, which will feature a button to download the entire game. You can then download and install the game without issues.
Yes. The Burning Crusade is an expansion pack, meaning it takes the original and adds to it.
you need to put the new key in...
You cant play Wrath of the Lich King without the Burning Crusade. The only way to play blood elf or dranei is to buy Burning Crusade. You also wouldn't really be able to level your character from 60-70 without the leveling areas in the Burning Crusade.
This is because even if you have not signed your account up for burning crusade you have only downloaded it.
You do not need the internet to actually install the expansion Burning Crusade but you will need the internet to update and play it.
Yes you have to download the whole game and its patches before you can upgrade to the Burning Crusade.