I found a reference to the report in this topic's reply #322. Unfortunately, though, the actual report is no longer up on MPI's site so all we seem to have left is the bit that Midnite quoted:
Don't ever underestimate Jim Pierson's resourcefullness to have his name placed somewhere. jk Actually he is certainly the man to critique the script.
I think that's a safe bet, jimbo, considering Pierson's ties to Producer David Kennedy. And this is from the article "Johnny Depp to Portray the Angst-Ridden Vampire Barnabas Collins?" at http://mpimedia.com/wp/?p=19 --
Producer Jim Pierson of Dan Curtis Productions and MPI Media Group will serve as a consultant on the project.
But at any rate, whatever his involvement ultimately is, as I said here:
I don't envy the position that being a consultant on the film puts him.