Unfortunately the person behind Kyoto Encyclopedia of Genes and Genomes (KEEG) is reaching retirement and the main funding agency that was suporting KEGG has changed and is no longer supporting individual databases.
Therefore starting on July 1, 2011 the KEGG FTP site for academic users will be transferred from GenomeNet at Kyoto University to NPO Bioinformatics Japan, and it will be available only to paid subscribers. The publicly funded portion, the medicus directory, will continue to be freely accessible at GenomeNet.
You can read the rationale behind in this page
We will see how this affects to the Reactome guys.