Almir,

Thank your for your help. I have supervisor running with:
at the end of supervisord.conf:

131 [fcgi-program:chat]
132 command=/websites/nginx/chat.toff
133 socket=tcp://localhost:9000

supervisor> status
chat RUNNING pid 4904, uptime 0:01:45

in my nginx.conf file I have:
56 location ~ \.toff$ {
57 #include /usr/local/nginx/conf/fastcgi.conf;
58 fastcgi_pass localhost:9000;
59 }

now when I browse my page, I am getting this in logs/error.log
2010/06/02 09:45:31 [error] 5839#0: *136 upstream prematurely closed connection while reading response header from upstream, client: 70.48.66.49, server: *.example.com, request: "GET /chat.toff HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "www.example.com:8080"

Any idea? Thanks again