I'm having quite similar problems like these.
Including author images - i solved this by using User Phot Plugin and this line of code in author.php
<img src="/wp-content/uploads/userphoto/<?php echo $curauth->userphoto_image_file; ?>">
but i still can't display html in decription text.
<?php echo html_entity_decode($curauth->description); ?>
And it would be even nicer having the possibility for authors to edit their description text via wp wysiwyg editor...
Are there any ideas out there?
Please let me know... :)