What do all of these different icons mean? Here's a list. If you see another icon that you;re unsure about, please ask (reply in this thread) and I'll find it and add it to the list.
(will finish the definitions later, I promise!)
Forum Icons

- Forum - No New Posts

- Forum - New Posts

- Subforum - No New Posts

- Subforum - New Posts
Topic Icons

- Unread Topic

- Unread topic - Hot

- Unread Topic - Hot - You have posted in this topic

- Unread Topic - Locked

- Unread Topic - Locked - You have posted in this topic

- Unread Topic - You have posted in this topic

- Topic Moved

- Topic Read

- Topic Read - Hot

- Topic Read - Hot - You have posted in this topic

- Topic Read - Locked

- Topic Read - Locked - You have posted in this topic

- Topic Read - You have posted in this topic
Announcement Icons

- Announcement or Informational Post - You have read this post.

- Announcement or Informational Post - You have read this post and it is locked

- Announcement or Informational Post - You have posted in this post and it is locked

- Announcement or Informational Post - You have posted in and read this post

- Announcement or Informational Post - You have not read this post

- Announcement or Informational Post - You have not read this post and it is locked

- Announcement or Informational Post - You have posted in and read this post and it is locked

- Announcement or Informational Post - You have posted in this post but not read the latest post

- Thread is related to money - Savings Codes, Coupons, Deals, etc.

-

- Forum Read

- Forum read, Locked

- Forum read has subforums

- Forum Unread

- Forum unread, Locked

- Forum unread - has subforums

- Top of Page
Contact Icons

- AOL Instant Messenger

- Email

- ICQ

- Jabber

- MSN Messenger

- Home Page

- Yahoo Messenger

- Offline

- Online

- Delete Post

- Post Info

- Report Post to Administrators

-

-

- Rate Bad

- Rate Good

- Attachment

- Latest Topics

- Newest Topics

- Topic Reported

- Unapproved Topic

- Warn User (Moderators only)
Sticky Post Icons

- Sticky Topic - No unread posts

- Sticky Topic - No unread posts - Topic Locked

- Sticky Topic - No unread posts - You have posted in this topic - Topic Locked

- Sticky Topic - No unread posts - You have posted in this topic

- Sticky Topic - Unread posts

- Sticky Topic - Unread posts - Topic Locked

- Sticky Topic - Unread posts - You have posted in this topic - Topic Locked

- Sticky Topic - Unread posts - You have posted in this topic

- Subforum - No unread posts

- Subforum - Unread posts