1. I'm really a he. ;)
2. Unless you count the default picture and friends on that layout, it uses only four images.
3. You can use as many or as few images as you'd like. Really, the only part of that tutorial you need to worry about is step 1, which hides your profile. Once you've hidden it, you can make a div just like in profile 1.0. The only thing that many people will need to do differently is switch from using inline styling to using a stylesheet.
This is inline styling (which is
bad for numerous reasons, even on profile 1.0):
CODE
<div style="position:absolute; top:0; lots:of; other:properties;">
Stuff.
</div>
This is using a stylesheet:
(added to your custom CSS box)
CODE
.class { position:absolute; top:0; lots:of; other:properties; }
(added to your About Me)
CODE
<div class="class">
Stuff
</div>