Just did the same and got no newer updates available. The log file is misleading says "Downloaded update info file" which refers to the information "no newer updates available". Try looking for an update again and then check the log - you`ll see the entry for each time you asked the question.
Further back in the log I can see "downloaded update Integrated tools" "downloaded update File check library" & "downloaded update Detection rules for tracking cookies" all dated 23/3/04 from a download site in Dortmund. This suggests the last update my S&D actually had.