Hi Clive,
Sorry, but I can’t tell anything from those statistics. There weren’t any major changes between those versions.
If you’d like to put your page back up and provide a URL I’ll take a quick look.
You may want to try using developer tools (such as Firebug) yourself to see what’s being loaded rather than just a summary. MapPress itself uses only 1 javascript file and a CSS file. The Google API fetches various map tiles based on what location(s) are mapped, the map type, etc.