Ok sorry about this but i've been trying to find definitive answers for updates. I've watched the video but its still not entirely clear
1) If there is only 1 number listed in the versions list (from the title db), does that mean that there are no updates available (ie that i don't need to update that game)?
2) If there are many numbers, is it only the latest (highest) number i need to download? I don't need to grab each one and merge them all?
3) to merge the game, is it just a matter of dropping the contents of the decrypted/downloaded folder and overwriting what is in the existing game folder?
1) I'm not quite sure what you're asking.
2) yes of course. You only need the latest update.
3) what do you mean merge? You mean to apply the update for use in something like Loadiine? If so, then no. Create an "updates" folder alongside the code, content, and meta folders. Let's take Super Smash Bros. as an example. It should look like this: