virus that avas cant detect

Hello i have a zip file on my pc,that is a virus.This virus cannot be captured fby avast(2 february 2008 last update),but is detected only by kav and nod32.How do i post to avast masters this virus,that in next updates ,avast will delete this virus.???

regards!!!

Send the file to virus[at]avast.com in a password protected archive and mention the password in the email body. Also uplaod the file to VirusTotal: that way all the AV companies will get it.

thank u sir!!! I like very much avast!

http://www.virustotal.com/analisis/a55e30a1464b02f6092ebd0769177668