Whenever a website is discovered to have some badware such as malware on any of its pages, that can be notified to a website called StopBadware.org which is sponsored by Google, Mozilla and others. This website then puts out a warning out so that people searching on Google for instance can see that there is such a warning.
It is then down to the infected website to check out if there is a problem, to sort it out if they find a problem, then inform StopBadware.org that their site is clear. Once StopBadware.org is satisfied that the site is clear, the warning is taken down.
It is possible to search StopBadware.org for specific websites to get more information. I see that the wondercliparts site was flagged as containing badware only today. It goes into further details and says:
Of the 21 pages we tested on the site over the past 90 days, 2 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2011-06-20, and the last time suspicious content was found on this site was on 2011-06-20.
As the warning would appear for the site as a whole, it is likely that the photo posted is in fact harmless, it just depends as to whether it came from one of the infected pages.
Thank you El Loro
So pleased to know all is well, and particularly in Scatts's thread, thanks El Loro