Is Spybot adding, not removing spyware?

On a brand new Gateway desktop computer which came with Vista, per Consumer
Reports recommendation, I installed TrendMicro Internet Security (which
uninstalled the McAfee app which came with the computer) and I just now
downloaded (from one of the spybot.com "mirror" sites) and ran Spybot. I did
this because CR says to run a 2nd anti-spyware application since none of them
catch all spyware.

BEFORE running Spybot, TrendMicro found no spyware.

I ran Spybot "Check for problems", resulting in "Congratulations, No
immediate threats were found"

AFTER running Spybot, TrendMicro now finds 13 Trojans (eg. aaasexypics.com),
98 Adwares (eg. adult-friends-finder.net), all from -->127.0.0.1

Nothing but Spybot was run between the two TrendMicro runs. Can Spybot
really be responsible for adding all this spyware? It was recommended by
Consumer Reports which is my consumers bible. Has anyone else run into this?
TrendMicro Internet Security is a paid-for product written by a for-profit
company, Spybot is "free-ware". Is this a case of "you get what you pay for"?

(FYI: Although I worked in the CAD/CAM software field years ago, I am a
total novice regarding PC's, the internet, downloading, Vista, security
software, etc. - and this is not a good initial experience, I must say!)