Stop panicking, read below.

Your Badges of Justice, Battleground Marks, and future emblems are now in your character sheet on the currency tab. Your mounts are also on the character sheet under the term "pets". You'll also have to respec your talents once you get into your game (your talent points went nowhere).

Click here to view our Wrath of the Lich King portal where many other questions may be answered. If you have some still remaining than check out our forums to ask the community.