A players profile is a representation of that person. your profile can be simple. with Name, Instant message screen names, etc.
Or , using Bbcode, you can make your profile unique. To edit your profile, click on the tools on the top of your player panel.

Placing an Image.
First you need the location of the image in URL form. in firefox you can right click an image and select "Copy image location".
Then in your edit profile window and input the code like this: [img]http://www.image.com[/img]

Placing a link.
Take the link url and type it like this: [url]http://www.link.com[/url]

Changing the back ground:
first you need to have the location of the image you want as the back ground, this is explained above.
then you need to type this code into the profile editing window: [style] body {background-image: url(http://www.image.com);}
[/style]

Changing the tables back ground.
Repeat the steps above accept replace the "body" after the style bracket with "Table"