Assuming you mean banners:
* Install the Logolinks plugin
* Disable the left/right block which will be enabled by this plugin
* Make a php(-return) enabled static page with this:
Text Formatted Code
$display .= COM_startBlock('Advertisement');
$display .= phpblock_randomLogos();
$display .= COM_endBlock();
return $display;
* Set that static page to appear on top of each page as a centerblock.
I hope I didn't make any mistakes, I'm no php expert but know my way around putting bits and pieces of Geeklog together....Good luck
Dutch Geeklog sites about camping/hiking:
www.kampeerzaken.nl | www.campersite.nl | www.caravans.nl | www.caravans.net