Hi maven
Go to this sites search page. Set Search for: to ClamAV and By user: to remus
Could you paste the specific URL (is it already a .tcz extension?). I only saw a forum regarding clamav between remus and Jason.W. And from what I read is it needed a separate user and group which I also experienced when I once installed in Ubuntu
The drawbacks with clamav is you have to manually update the engine and database
BTW here are some varieties of free antivirus for Linux:
Sophos
Comodo
Avast
AVG
Bitdefender