Spbot 1.6, Win2Kpro - no evidence of malware, no computer problems (the end of a long cleanup of a recently purchased machine).

I've read a bunch of alexa-related threads, and there clearly IS a problem with Alexa, but I don't have it, nor AFAIK any signs of it.

Spybot flags my "related.htm" as "alexa related". The contents look like

//Build the query

//Perform simple check for Intranet URLs
//this is where the http or https will be, as found by searching for :// but skip res:
serverIndex=userURL.indexOf("/",protocolIndex + 3);

//Check if Intranet URL - then open search bar

if (urlresult.indexOf(".",0) < 1) userURL="Intranet URL";
finalURL = RelatedServiceURL + encodeURIComponent(userURL);
external.menuArguments.open(finalURL, "_search");

So why is it a security risk? Am I missing some detail because I don't actually USE IE?

And if I wish IE to search using Google instead of MSN search, what is the correct way to get Spybot to acknowledge it? Do I have to file it as an individual exclusion? And will this prevent Spybot from detecting if it is altered later by malware to something other than google?