muc configuration

hello,
i'm an absolute beginner. downloaded ejabberd and am trying to configure the server for multi user chat. i have the following in the config,

{hosts, ["1supply"]}.
....
{mod_muc, [
{host, "conference.@HOST@"},
{access, all},
{access_create, all},
{access_persistent, all},
{access_admin, muc_admin}
]},

1) is this right?

2) I'm using a sample HTML & javascript code as client to connect to the server and create a new room. based on the configuration above what should be the name of the chat room. I tried "conference.1supply", "trialroom.conference.1supply", just "trialroom" and every thing fails.

with the same client i'm able to create a new chatrooms "badinar@chat.speeqe.com" and "badinar1@chat.speeqe.com" on the speeque website using my @jabber.org credentials. so my assumption is my ejabberd config is wrong.

any help will be greatly appreciated.

thanks,
badri