This archive is straight from an unmodified registered Color 64 BBS v7.3 floppy.  There are two disks in the image which are side 1 and 2 of the original floppy.  This is exactly what you would get had you ordered a copy.  Version 7.3 was an upgrade from 7.0 and added support for the Xetec hard drive.

Greg Pfountz, the original author of Color 64 BBS software, has authorized the release of the final version that he wrote of Color 64 (v7.37) to the Public Domain. This zip file contains all six disk sides in d64 format.

v8.1 of Color 64 BBS is an upgrade to v8.0 - Included in this archive is a pdf with some notes on the upgrade.

Congratulations  you are the owner of the ultimate upgrade to your Color 64 system!  Version 128 will allow you to run your BBS in C128 mode, without going back to stock Color 64 overlays!