As the topic mentions, i have a problem with the blizzard standard ui target frame reappearing all time when using Pitbull together with Archaeologist. I previously used Xperl, which did not have this problem, so i took a look at there code and found a workaround that may fix it:
uh, why would you use Archaeologist with custom unit frames?
because i'm using CosmosUI (a compilation of addons), archaelogist is part of it and there seem to be a lot of their addons depending on it (when i disable it, some of them give errors, and some of them just stop working). There seems to be work in progress in Cosmos to completly replace Archaelogist, but until that is done i have to go with it.
I can't imagine how any addon would depend on Archaeologist, unless it was a further modification to the default Blizzard frames. What specifically happens when you disable Archaeologist? Which addons stop working? Which addons throw errors, and what do the errors say?
Alternatively, you could drop CosmosUI and just download standalone addons to replace the parts of it that you do use.