Most probably the site's been hacked!!
Found this report off my FF browser:
What happened when Google visited this site?Of the 1 pages we tested on the site over the past 90 days, 1 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2010-10-06, and the last time suspicious content was found on this site was on 2010-10-06.Malicious software is hosted on 3 domain(s), including xsearcher.net/, aseoplent.com/, sefaty-guardian5.net/.
3 domain(s) appear to be functioning as intermediaries for distributing malware to visitors of this site, including umniktds.ws/, smarttds.ws/, xsearcher.net/.
This site was hosted on 1 network(s) including AS24238 (DEDICATED).
HTH
Cheers
Bill