[JNANDE]

Just install Sedoy's standalone package, and download the newest or old full SDP 7zip file, extract the files to the right folder as my post said and overwrite all the content. You can keep as many of SDP version as you want if you have a large enough disk.
This is the simplest way, If you still don't understand, you can watch the youtube video in the attachment link, if you still don't understand, you can pay someone to install it for you remotely.

Thank you for your help! I will try this again tonight. I am going to install Sedoy's standalone package, then extract the newest PSdZ files to the folder following the video you linked to. Hopefully all goes well and the programming data will show something other than n/a. Thank you again!

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Just install Sedoy's standalone package, and download the newest or old full SDP 7zip file, extract the files to the right folder as my post said and overwrite all the content. You can keep as many of SDP version as you want if you have a large enough disk.
This is the simplest way, If you still don't understand, you can watch the youtube video in the attachment link, if you still don't understand, you can pay someone to install it for you remotely.

If you just overwrite old, you will have gigabytes (or tens of them) of old unreferenced crap left. Best to delete old and extract new IMHO.

I don't really understand the file structure and parameters but this makes sense. I could see just extract/overwrite with Delta releases but with a full release I wouldn't think there is much point to saving old data unless you need to roll something back to an earlier version due to glitches/misbehavior of the vehicle systems stemming from the software.