When you installed the new version, did you it ask you anything about mysql setup? It sounds like you have 2 versions of mysql installed now and have one version with your old data and one with the latest. Do you know how to open pgadmin and check this? Just type pgadmin to your run command line and see how many versions of postgres you have installed and if there’s more than one database installed.
As far as all of your stats shown, I’m not sure what you mean exactly. Do you mean in the gauges? All of your data is present in the reports section. And yes, we’ll have an option to have cumulative and only current session data shown on the HUD. Most people use session stats for obvious reasons.