You can get a Trial version of WoW, which will allow you to play the revamped "old world" just as it is during Cataclysm. However, you will not be able to level very far or reach any of the content for which you need the expansion packs.
It would seem that you need to have a full World of Warcraft license to purchase this mount.
Yes you will need to buy the game to continue playing after the trial is over.
If you are receiving the error 203 when you are either trying to set up or upgrade a trial account you need to contact the accounting and billing department for World of Warcraft.
it's not on WoW that you need to be an administrator, you need to be logged in to an administrator. account
It is very quick(3-5 minutes)...the trial downloads the content you need, when you need it...so you dont have to download the entire client.
Yes, the Night Elf race is an Alliance race. You do not need Burning Crusade to be a Night Elf. It is included with the "vanilla" version of World of Warcraft.
That should be a key code that you need to enter so you can activate the version of WoW you bought.
No, you do not need a credit card for the free trial. However, once it has run out, you will need to maintain a subscription, whether by game cards, credit card or direct debit (if available in your country).
It give full membership for 60 days yes, but you will need your own retail bought version of the game.
The world of warcraft client is auto updating, meaning it should automatically update itself when you try logging in. If the auto-update is not working, then something is wrong and you might need to call blizzard technical support for help.
Yes, you need a Battle.net account to play World of Warcraft. A while ago Blizzard required that all World of Warcraft accounts be merged to Battle.net accounts.