[Mediawiki-l] Adding contents to the index page

[Sarel Wesssels (Agri Wiki)]

Stupid question: How do I add contents to the index page?

I want to join a banner exchange program and have to add html code into 
the front page(index). What file do I have to change? And can I just 
copy and paste it? I'm a bit confused with the php-files and languages.

Thank you.

Regards,


Sarel