1. Create an account on photobucket.com / servimg.com
2. Upload your pictures into your album ( photobucket / servimg )
3. When posting pictures just copy the direct img link on your photobucket e.g. :
http://i205.photobucket.com/albums/bb106/armyinc/kul.gifor the entire image link
4. After copying the direct link click the insert image or inclose your url with [img][/img] e.g.

follow step 3.
5. Preview just incase you have some alteration.
6. Good Luck!