Ahhh....
It seems that the update requires BBW.EXE to be present for it to install.
You did the right thing in updating the path for the installation.
Now it's time to try your sales account at PG Music.
1. Log into your account from PG Music's homepage.
2. Select "My Products".
3. Download the file that I've highlighted on the graphic at the end of this post.
Note
If you don't see this file or its equivalent, it probably means that you haven't registered your Everything Pak with PG Music. If this is the case, register it now. You will need the serial number (which is on the back of the USB hard drive).
Once the product is successfully registered, the download files should appear (although it also take a day or two for this to happen).
Lastly, if none of the above work, it's time to contact PG Music Support. Live Chat, under the Support tab at the top of this webpage, is the quickest way.
If you send an email to Support, include the URL of this thread in the email so that the PG Music team can read what you've tried by way of attempting to fix the issue.
Regards,
Noel