It would be worth upgrading DSLstats to v5.8.6 for other reasons, but I don't think that will affect this particular issue. As Tony says, you can check in the directory mentioned, to see if the HLog and QLN zip files are there. Also, make sure that HLog and QLN are ticked in Configuration --> Items to Monitor (they should be automatically ticked when these items are enabled in the MDWS setup, but it's worth checking to make sure).