See my post about bloodhound for much more info.
The basics are it is a pointless exploitative worm that is spread using google.
The avatrs and smilies have currently been disabled on this site as they can be remotely loaded.
Admin are aware and working on this issue.
Santy and other similar types of worms set out to exploit phpbb sites, they don't infect the computer of the persons using the forums.
Only norton will pick up a "bloodhound" as it is nortons own term for something it doesn't know.
If you find anything on your pc like a trojan chances are it came from somewhere else not here.