Below is the error I get on top of my webpage when I activate 3.3.2 :

Warning: opendir(/home/rokdropc/public_html/onwalkabout/wp-content/themes/atahualpa/images/header/) [function.opendir]: failed to open dir: No such file or directory in /home/rokdropc/public_html/onwalkabout/wp-content/themes/atahualpa/functions/bfa_rotating_header_images.php on line 31

Warning: readdir(): supplied argument is not a valid Directory resource in /home/rokdropc/public_html/onwalkabout/wp-content/themes/atahualpa/functions/bfa_rotating_header_images.php on line 33

Warning: closedir(): supplied argument is not a valid Directory resource in /home/rokdropc/public_html/onwalkabout/wp-content/themes/atahualpa/functions/bfa_rotating_header_images.php on line 38

Any assistance on what I did wrong with the installation would be greatly appreciated. Thanks.

Looks like you don't have any images in /images/header/ or no /images/header/ directory at all. Putting one small image there should correct this

I'll add something to avoid this warning for users who don't want header images, in the next version