actually this script has module to update. it’s petty similar like installation. you have to update file in server ( you will see and update folder in download file, just upload the zip file and unzip in server ) now go to yourdomain.com/update and follow the instruction.
if you did not find update folder in updateable zip file, then create a update folder first then upload update file to update folder
checkout this video tutorial to know the process of update the script
Are you still scared to Update ? Don’t worry our support team will help you to Update the script.