You can search the package number at www.MapMedia.com minus the ending version number and it will show you the current options. (ie. "WRMEW28MAP")
Your package was purchased in 2012 and offers version 3 map as part of that package. The newest package (WRMEW28MAP7.1) offers version 8. Although you haven't upgraded the chart in a very long time; the upgrade price to the current version is the same. (typically half the cost of buying a new chart) You would contact your dealer to upgrade the licence and then download the new version and load it to your machine.