The acua-3.xx-special-login.tar.gz file is a debug version of 
acua_login called acua_login_debug.  It will log to /var/log/syslog the 
exact error that ACUA is getting when trying to authorize a users 
login.  This version can also be used in ACUA v3.01, v3.02, v3.03

The other files here, acua-3.xx.tar.gz, etc, are the stable releases of 
ACUA.  If you want beta releases, you should look in the 'beta' folder.

Red Hat Users:
--------------
There are no RPM's available because my system always runs the latest
libc, so me making binary rpm's would be no use as they will not work
on your Red Hat systems.  Just download and compile the source instead.

A RADIUS version of acua which now has accounting capabilities is
available from the 'radacua' directory.

Regards,
Robert Davidson.
ACUA v3.xx Maintainer.