Advertising in Drupal

Hi everybody,

I'm working on a Drupal based web site, and I tried to upload it on Altervista.
I would like to insert an Altervista advertising banner, but I can't make the script work.

FYI: I paste the script in a page, in the header, in a block, but nothing happens...

How can I do?

Thanks,
GHIBLI

[dapeco]

Do you have any sample page with banner that aren't work?