access denied message and ACLs

I have just gotten squid up and running and now I am trying to configure
it. I have a few of questions:

        1. Is there a way to change the content of the "access_denied_msg"
        without having to change the source code? i.e. like having a
        access denied parameter in squid.conf that points to a URL.

        2. For the acl command "http_access", is there a way to do a
        redirection rather than allow or deny?
        
        3. Finally, are there more complete docs for the config file then
        what comes with the distribution?

thanks

-- 
Mark Crother                    crotherm@roses.rockwell.com
Rockwell's Operational Software Engineering System (ROSES)
Space Systems Division (SSD)    All opinions are mine.