wrapping text around and adding captions to images

howdy WordPress folks,

I searched ‘images’ on the forums, but most of the posts were “not a support question.” So here goes: how do you wrap text around an image and add a caption? The code in WordPress documentation (http://codex.wordpress.org/Wrapping_Text_Around_Images#Left.2C_Right.2C_and_Centered_Examples) is incorrect:

<img src=”/images/leaf.gif” class=”right” alt=”Red leaf” title=”Red Leaf” />

WordPress 2.1 simply deletes:

class=”right”

and leaves the image aligned left by default. As for captions, the documentation is also incorrect:

<div class=”caption right”>
<img src=”/images/leaf.jpg” alt=”leaf graphic” title=”leaf graphic”>
Red Leaf</div>

WordPress 2.1 turns this into:

<div>
img src=”/images/leaf.jpg” alt=”leaf graphic”>
Red Leaf</div>

Why is WordPress documentation incorrect, and how do I:

1) wrap text around images
2) add a caption

? (And what are the alt and title tags for, if they don’t show up anywhere? WordPress deletes the title tag anyway.)

utterly confused,
*Stephanie