Dial Up Admin Interface

We are looking at installing the Dial Up Admin Interface for administration purposes. Research suggests that the place to in all the relevant information is at /usr/share/doc/freeradius-dialupadmin/HOWTO.gz We have installed V1.1.4 and the HOWTO.gz cannot be found here. Could someone please point me in the right direction. Or is there a better admin interface to use? Any recommendations greatly appreciated. Peter.