You can download the Borg from my site, and if you want to use the God Emperor Borg AI, you can get it from here:
http://www.shrapnelgames.com/cgi-bin...;f=50;t=000001
Look for the God Emperor Post about 6 or 7 down from the top.
Also, if your interested, you can try the AST mod v1.4 out. It has a lot of modified AI files for 8 regular Star Trek Races with special tech, including the borg, and 12 additional races with general tech. There are also 20 neutrals with their own agendas and one special building each.