Often its desireable to scale the image (width, height or even aspect ratio) for clarity or to preserve screen space. This can be done by changing the pixel settings (works up to about 500).
[img width=150]http://farm6.static.flickr.com/5126/5214773983_9e79d33b5f.jpg[/img]
[img height=150]http://farm6.static.flickr.com/5126/5214773983_9e79d33b5f.jpg[/img]
[img width=300 height=100]http://farm6.static.flickr.com/5126/5214773983_9e79d33b5f.jpg[/img]
[img width=100 height=300]http://farm6.static.flickr.com/5126/5214773983_9e79d33b5f.jpg[/img]
Make an image clickable by wrapping the url tag around the image code:
[url=http://farm6.static.flickr.com/5126/5214773983_9e79d33b5f.jpg][img width=100]http://farm6.static.flickr.com/5126/5214773983_9e79d33b5f.jpg[/img][/url]
