Fixed bugs reported by JT when empty search was performed; diagnosed and reported the Heritrix/Wayback Machine bug to them, and tried various workarounds in the JavaScript (none successful yet); implemented the 404 page; and started work on the eXist library to handle legacy URLs. It's working for xbrowse.xq URLs already, and extending it for xgallery.xq and xscan.xq should be relatively straightforward.