I received a similar warning from Google when I marked the forums as read and was returned to the index.php file.
Warning: Something's Not Right Here!
www.mp3car.com contains content from antationion.com, a site known to distribute malware. Your computer might catch a virus if you visit this site.
Google has found malicious software may be installed onto your computer if you proceed. If you've visited this site in the past or you trust this site, it's possible that it has just recently been compromised by a hacker. You should not proceed, and perhaps try again tomorrow or go somewhere else.
We have already notified antationion.com that we found malware on the site. For more about the problems found on antationion.com, visit the Google Safe Browsing diagnostic page.