I'm testing some new code for displaying games in an online viewer on this blog. I'm using Chess Viewer Deluxe, written by Nikolai Pilafov and based on Michael Keating's very popular MyChessViewer which I used to use for BritBase. It looks pretty good and, unlike most viewers to date, allows you to move pieces around on the board. It was quite easy to set up. I might well start using this for Britbase proper.
For testing purposes, here are three games from the Bolton Easter Congress sent to me by Mick Norris and Rod Middleton.