Well ya did it right it's just that the image you chose can't be displayed. Probably since it's comin' through Yahoo.....I've had a hard time with them. To display a pic: EDIT: When I mentioned no spaces I meant between the and the image. Like [img]*space*url*space* is a no no
You can also click the little picture button (that thing) on the WYSIWYG editor when you're posting. It'll pop up a box and you enter the url.
I've never tried that 'cause I have a program in which all I have to do is drag and drop the images into the post. Makes it much easier 'cause it stores the images too.