Does anyone know what happened to the chip-seq exercise by James?

It was part of a collection here:
http://main.g2.bx.psu.edu/u/james/p/exercises

and it was linked here:

http://main.g2.bx.psu.edu/u/james/p/exercise-chip-seq



But is it 'Not Found'.

It was a very useful exercise.  Will it be back soon?

Josh