if (plgSystemAkismet::isSpam($ip, $name, $email, $url_of_page, $comment_body)){
$my_comment_is_spam = true;
} else {
$my_comment_is_spam = false;
}

and for the stats
echo plgSystemAkismet::Stats();


I will provide the complete documentation soon!

or find more about anothr way of implementation at
Joomla! Documentation wiki.

-0.4
works!

-0.3
change syntax
add function to display stats