We have installed a demo version of phpAntiVirus on this site. Please note it uses a cut-down list of virus definitions to save on SourceForge server resources. It is still doing a live scan however.
This will always be the latest stable release of phpAntiVirus. It also has debug more enabled for a complete report.
To view the demo installation follow this link:
http://phpantivirus.sourceforge.net/latest/