Website flagged as having malware.

I helped a friend set up a WordPress site (www.danielwalley.com), hosted on Dreamhost. Everything has been fine until this past week when he said he was getting this message from his browser “Warning: Visiting this site may harm your computer! The website at http://www.danielwalley.com contains elements from the site profitool.biz, which appears to host malware – software that can hurt your computer or otherwise operate without your consent. Just visiting a site that contains malware can infect your computer. For detailed information. . .”
Anyway, I looked at StopBadware.org and the site is not listed, nor is it in googles own webmaster tools. I’ve looked through the php files in the template and any javascript files associated with it and can’t see anything that looks out of place or that’s been hacked. So, I thought I’d turn to the forum to see if there’s something I’m missing or if I’ve gotten a false positive on the malware report and need to report that to Google.