The workshops were as follows:
An intensive two-week introductory workshop at MSRI beginning August 16, 1999. This event was an AMS von Neumann Symposium on Arithmetic Fundamental Groups and Noncommutative Algebra, held in conjunction with the concurrent Non-Commutative Algebra program at MSRI.
Two one-week workshops on current developments on Galois groups and fundamental groups in October, 1999:
(a) Week 1 (October 4-8) concerned constructive Galois theory (broadly construed).
(b) Week 2 (October 11-15) concerned Galois actions and geometry.
Notes and streaming video for the workshop talks are available via the above links.