I've been seeing a few general questions asked about how to do certain things on the forums and thought it would be nice to create one big repository of answers.
So if you have any resources on How-To's from the forums bookmarked, here's the place to post those links and I'll add them all to the OP. If you have certain questions on how to do things post them here. If you have answers, post those as well. We'll create an OP that contains answers to as many queries as we can.
List of Guides
Add Pictures to Posts
Using "Quick Reply":
Images can be added to posts using BBCode (bulletin board) tags for images. Those work by putting the link to the image between an opening tag "[ img ]" and a closing tag "[ /img ]". When using the tags remove the spaces. There are no spaces in the tags when in use; I've included them so the page doesn't try to render an image between the tags.
Using "Rich Text Editor"
The easiest way (not using the HTML editor) is using the 'Insert Button' button in the Rich Text Editor panel. It is the little icon of a tree between the anchor and the brush. If you can't find it, it's the 4th icon from the right on the second row of buttons in the editor.
Pressing it will bring up a dialog where you can paste the link of the image and fiddle with other options. Note: These other options don't always work (especially the dimension ones) so don't rely on them to scale down an image you're posting if the image has large dimensions.
Add a poll to a thread
When creating a new thread the screen you're presented with lets you (from top to bottom) select a forum to place the thread in, insert a title for the thread, add a poll through a check box. If you check the box to add a poll, you will be presented with a screen when you've submitted the OP. From here it's pretty self explanatory; just add in the question and the answer options.
In the top right corner of the original post you'll see an "edit thread" button if you are the thread creator. When you click it you'll be presented with the option to move the thread, change the thread title, add/edit the poll (click the "click here" text to add a poll if there isn't one). You'll be presented with the same screen as you would if adding a poll to a new thread.
List of Emoticons (exclude spaces)
: - ) (smile)
: - ( (frown)
; - ) (wink)
: - D (laugh)
: - P (tongue?)
( c ) (sunglasses)
: - # (sealed mouth)
( k ) (kiss)
( y ) (thumbs up)