-snip- [upgrading f-prot details]
> Restart Mailscanner ... /etc/rc.d/init.d/mailscanner restart Finished this but now I get errors in my mailog: ns1 mailscanner[2343]: Either you've found a bug in MailScanner's F-Prot output parser, or F-Prot's output format has changed! F-Prot said this "Search: .". Please mail the author of MailScanner Using bassi pkg with new f-prot?
I experienced the same then mailscanner went through a scheduled restart then everything worked correctly. I found a manual restart via the /etc/rc.d script doesn't get mailscanner to use the new sweep.pl but after it restarts itself then it loads the correct file.
Leave it for a while and you'll find it works or possibly try and /etc/rc.d/init.d/mailscanner stop followed by a start rather than the restart command.
Dan