Sig:
1. Go to Profile on the Nav Bar.
2. Then click on Preferences.
3. Then scroll down until you see the option Always attach my signature.
4. Select Yes.
5. Then go to Signature.
6. In the text box copy and paste the url of your picture.
7. Then before the url put [.img.] and after the url put [./img.] with out the periods in them.
7. Then just click save.