Updating Question

Hello Everyone,
First of all, I downloaded KisMod 2.0.17 from the site, then I downloaded the updates named "phpbb_2017_to_2019". And finally, "Integramod_2.0.19-2.0.20".
Now I am going to describe the steps in which I updated it. I copied the install folder from "phpbb_2017_to_2019" and ran the "update_to_latest.php" file. Exactly like this, I copied the install folder from "Integramod_2.0.19-2.0.20" and ran the "update_to_latest.php" file.
My Questions:
1) Is there any step that I did wrong here?
2) Am I missing any steps here?
3) Are the "premodded files" in each update to be used during this process or are they supposed to replace the files?
Thankyou for this wonderful modification for phpBB and a useful support community.
Googler

First of all, I downloaded KisMod 2.0.17 from the site, then I downloaded the updates named "phpbb_2017_to_2019". And finally, "Integramod_2.0.19-2.0.20".
Now I am going to describe the steps in which I updated it. I copied the install folder from "phpbb_2017_to_2019" and ran the "update_to_latest.php" file. Exactly like this, I copied the install folder from "Integramod_2.0.19-2.0.20" and ran the "update_to_latest.php" file.
My Questions:
1) Is there any step that I did wrong here?
2) Am I missing any steps here?
3) Are the "premodded files" in each update to be used during this process or are they supposed to replace the files?
Thankyou for this wonderful modification for phpBB and a useful support community.
Googler