How does an upgrade work?
When you upgrade with StatCounter, additional log space is made available to your account.
This additional log space allows you to retain online access to a longer period of stats.
Note that YOU must assign the additional log to the projects in your account. This is NOT done automatically so that YOU can decide how best to allocate the additional log among your projects.
To allocate your additional log to your projects, log into StatCounter, go to the My Projects page and click the "Adjust Log" link at the top of the page.