Well, follow the bouncing ball...
From the page you linked comes the following link couched right at the top of the page shortly after the author explains he's not updating it anymore:
http://ui.worldofwar.net/ui.php?id=1511
Which leads to "HoloFriends Continued" which, I also noted is "out of development" according to UI.WorldOfWar.Net, so then I scroll down a bit to the last comment left on that mod's page and I read that some chap with the startlingly dapper monniker of "BDKMPSS" has supposedly updated the mod at:
http://www.curse-gaming.com/en/wow/a...continued.html
Though, in reading the description for the addon at this page it doesn't seem like the one has anything to do with the other (I can't tell from the 100 x 100 pixel screenshots he submitted really). Beedeekayempeess' mod appears to be some sort of main tank assist thingy and the mod you're looking for is a friendslist mod.
>.>
<.<
Which is a shame since this looks like it was a great mod... when it was working. :/