[Mediawiki-l] Monobook skin ?

[BoD]

Hello! I'm new to mediawiki, and just installed it. It works fine, but 
now I'd like to have the same beautiful skins as in the wikipedia, i.e. 
the Monobook skin.
Now I looked at this page http://meta.wikipedia.org/wiki/Skins and then 
downloaded Smarty-2.6.2, and put it at the right place; then I did the 
LocalSettings.php changes (albeit I only did the smarty part - do I need 
to get PHPTal too?) so here's what I have now in my LocalSettings.php:

set_include_path(get_include_path() . ":" . $IP.'/Smarty-2.6.2/libs');
$wgUseSmarty = true;

Ok.. and that didn't change anything :) What am I supposed to do now, to 
be able to choose the Monobook skin?

Thank you very much for your help.

BoD