If you need to upgrade from an earlier version of TransparemtMAPS:
1) Backup your existing /addons/transparentmaps/ folder, and make a backup of your Open-Realty database.
2) Unpack, and upload the contents of your updated transparentrets.zip file to replace your original add-on files.
3) Access your Open-Realty administration area as the admin user.
password: (your password)
Once you have logged in, the upgrade will occur automatically.
4) If you had made changes to your TMAPS language file (lang.php) you can now restore the backup copy of that file you made in step #1. You may wish to examine the new version first to see if there were any new language variables added, and add those to your customized version.