All depends on teh media processing that you use i.e. the default media processing or do you use something like NextGen.
At any rate when you put an image in a post the form will be like this
<a href="http://192.168.48.99/~paul/zenofmud/wp-content/uploads/2009/10/flower.jpg"><img src="http://192.168.48.99/~paul/zenofmud/wp-content/uploads/2009/10/flower-223x300.jpg" alt="Ben covets Greg's flower" title="But will Greg give it up without a fight?" width="223" height="300" class="size-medium wp-image-108" /></a>
so you can always edit it in the post - using the HTML editor