WoW acc trial onto 1 free month question?

Arthurx,

I believe you may be a bit confused as to what is offered with the game and how the keys are tied to the account.

Based on what I can see and as you mentioned you have three accounts. I'm listing the accounts and their current level status.

WoW1 - Trial
WoW2 - Upgraded to Standard
WoW3 - Trial

Now, as far as the games, we currently have the main game World of Warcraft and two expansions. Here is more or less of what's included and what is required to use the key.

** Note ** The authentications keys can only be used one time. Once the key has been used, it can no longer be removed, transferred or deleted. Both expansions do not include 30 days of game time

World of Warcraf Classic - Upgrades the account to standard edition and includes first 30 days free. You are able to level your character from 1-60
World of Warcraft: The Burning Crusadee - Allows you to access expansion content and allows you to level your character from 60-70. **Requires: World of Warcraf Classic**
World of Warcraft - Wrath of the Lich King Allow you to access expansion content and allows you to level your character from 70-80. **Requires: World of Warcraf Classic and World of Warcraft: The Burning Crusade**

As I can you also had an installation question. The game only needs to be installed once and is not associated with any specific key.

Let me know if you need further clarification. =)