I get the following errors.
HTTP Status 404 - /admin-console
type Status report
description The requested resource (/admin-console) is not available.
There's no console that can do this - the admin-console and the jmx-console's beans perform very similar actions - you can stop/start a service, monitor throughput and performance on a service, start/stop an ESB deployment or queue, but there's no design component there. In JBoss ESB that sort of configuration takes place when you build your .esb archive.
There are Eclipse tools that can help you with these tasks though - either download JBoss Developer Studio (https://devstudio.jboss.com/download/7.x.html) or download Eclipse and install the JBoss SOA Tooling (https://www.jboss.org/tools/download)