You might want to check out my site where I review what I consider to
be the best of the best freeware at http://georgeh123.blogspot.com (I
have only reviewed a few programs of what is available -- but they are
excellent programs). I looked through the site you reference and
didn't anythng obviously bad about it but I have never actually
downloaded anything from it. I have found http://www.snapfiles.com to
be one of the best places to look for freeware. Although they have
shareware, it is listed completely separate from the freeware. They
also have an adware/spyware policy here:
http://www.snapfiles.com/adware_spyware_concerns.html
I have downloaded a lot of stuff from snapfiles and never found any
malware in it. All I can say is be sure to download screensavers and
desktop themes from trusted sites. Never donload freeware from an
advertisement or a pop up. If you want desktop themes, I consider
http://www.themedoctor.com a trusted site.