[eluser]Michael Wales[/eluser]
In a controller you can do the following to echo out the CodeIgniter super object:
Code:
echo '<pre>';
print_r(get_instance());
echo '</pre>';
Remember, CodeIgniter only loads it's core parts by default - everything else you are telling it what to load. If you need to figure out a class name (like the Active Record one, kind of odd) - just open up that file within the /system directory and check out the class definition.