How do I paste a picture in my post, like my faction badge, another picture of my character, etc.
Do I use my signiture?

Have a look at this page:
http://www.swcombine.com/members/character/index.php?strMode=profile
There you are able to alter your settings.

When posting there is a box which says what BBCode tags are available.

To insert an image use the img command from the list. Just replace the part which says image.jpg with the full address of where your image/logo is on the internet.

Actually, there is only one bbCode available (

“ ”

), for the remaining things please use the HTML tags that are next to the textarea where you write your post. If you want to include images in your signature, please use the same HTML tags.

As you can see here, (below) that I tried to post it in my signiture, but it wont display the picture. why is that? do I have to display as an http or somthing elce?

At the moment you have this:
<img />
\" the empire always treats its citizens fairly... unless they dissagree!\"

That hasn't got a URL in it, and it's not a proper HTML tag. If you want an image to display, use the Image tag shown to the right of the textbox when you make a new post here. It should look like this:

<img src="http://www.yoursite.com/image.jpg" />