If you've already installed Admin Log Extension and don’t know how to enable GeoIP, please follow the instructions below:
1) Download the following files:
2) Put them into the folder (create folder if it does not exist):
3) Go to "Admin Panel/System/Configuration/Geo Ip Data" and click "Download and Import". Then wait up to 20 minutes without closing the browser window and attempting to operate Magento backend in separate tabs.
4) Then open "Admin Panel/System/Configuration/Admin Actions Log/Geolocation" and select 'Yes' for the "Use Geo IP" option.