A dataset called the “Atlas Archive” is now available for download. It is a zip file of the miscellaneous vector layers and raster images that were available for download on the original Atlas website.
Rather than keep them offline until they could be properly organized, the entire collection has been added to a single zip file and published online. Much of the data had been inaccessible as the original Atlas website functionality declined with the lack of support for Java and other outdated software.
See the Atlas Archive Directory spreadsheet to preview the files and folders included in this collection.