Hiya - Don & Andy don't provide this forum - probably best to post in Shrapnel General
http://forum.shrapnelgames.com/forumdisplay.php?f=14
However fwiw I see NO ads whatsoever and I am pretty sure no reputable company would allow unsavoury adverts or pirate-type ads. My assumption would be to look first at your own machine's security.
Good Luck!