To get your pic to show up on a post, right click the picture to get properties and copy and paste the properties onto the post. Then make and image link [img ]thepictureproperties[/img ]. Don't put spaces in the img boxes, I just did that so they would show up. The pictures need to be online already, not just on your computer, though I guess some computers will do this. To get free picture hosting online use sites like imagestation.com or tinypic.com and they will give you a link to the picture and also the properties and image link. You can put several pictures on one post this way, also.
Example: heres my siggie with a space in the first box so it shows up how it would look in the post [img ]http://img228.echo.cx/img228/6964/again3cv.png[/img]