Trying to upgrade to Blacklight 5

I purchased Blacklight 5 today (Order # 0129338773) and I’m trying to upgrade from Blacklight 3/4. (Order# 0031289049) I have opened my Backlight Admin/Backlight Modules and there is no BL5 Modules to install. I believe part of the problem is my prior purchases were under an older e-mail (that got hacked) and I used my new e-mail to purchase BL5. In addition, I did download the new BL5 zip file that was sent to me. Do i need to upload the appropriate files? and start over or will they overwrite/update the existing?
Hopefully this is a simple issue to address,

Thanks, David O

send a direct message to @Matthew by clicking on his name link and then the Message button. He can reconcile the email address issue. Then you will be able to update from the Modules page.

Thank you, Rod.