We removed the attachments feature ages ago. We aren't a file hosting service, and there are plenty of places where you can host images for free.
To embed an image in a post, take the image URL and place it in-between [img] tags (or [imgfit] tags if it is large).
To embed an image in a post, take the image URL and place it in-between [img] tags (or [imgfit] tags if it is large).