For the moment, we have left the archive files on the old site. You can view them at http://www.lcresources.com/discus/index1.html. Or, even easier, click on the Archives link near the upper right of the screen.
The archives contain something over 10,000 messages arranged in almost 4,500 topics ("conversations") covering the period from the launch of Chromatography Forum in May, 1999 through August, 2004. You can browse by general area (GC, LC, etc.) or do a Google search by keyword.