Hi Christine,
Yes, I would definitely recommend that you upgrade to the latest version (right now it's v 2.0.706), but before proceeding with the upgrade, please make sure you saved a backup of all your personalized lessons (including the ones you downloaded from the Forum Library). To save your personalized lessons, simply use LR's Export function.
In case you need help with using the Export function, please refer to this Support article (the video pertains to LR 1.5 to 1.6):
http://support.brillkids.com/index.php/article/little-reader-import-exportAfter exporting your lessons just make a copy of the file(s) in your Desktop or other temporary storage so you can easily import those back after upgrading Little Reader. Regarding the playback statistics, we'd like to confirm that this data will be saved during the upgrade,
as long as you do not uninstall your current LR before trying to install v2.
When you're ready, download the installer for the latest version from your Account Management page and follow the instructions in this article:
Installing and Setting Up Your Little Reader
http://support.brillkids.com/index.php/article/little-reader-install-and-setup-from-accountDo note that there are also newer versions of your curriculum content, and you may choose to download and import those after upgrading LR.
Kindly let us know if you need further help with doing the upgrade