Allows the author/user to upload gravatar/photo/profile image directly from the user dashbaord to display on their blog post.
It allows you to upload author photo directly from user section of the dashboard.
No, plugin takes care of it, and adds the image next to author name on his blog post.
No, any number of authors on the blog can upload their individual photos in the user dashboard and it will feature next to the author name on blog post.
Go to wp-content/plguins/author-profiler/author-profiler.php, open it in your php editor and go to line 116 and you can update width and height. Visit http://amancingh.com/blog/author-profiler to see how to implment.