Pretty much, yeah. Some of them may have different versions, for example some models may have had realtek audio, some may have had nvidia audio (as a hypothetical example) so make sure you grab the right ones. I find it good practice to get all (of the relevant ones) so, yeah.
Just a note, when it comes to running the file in XP, the HP thing seems to basically be unzipping the file. It will dump the files in the (changeable) place it listed, sou you'll have to navigate your way there and do a bit of guesswork which of the many unzipped files to run ;P
I would recommend you change the name of the unzipping folders from the codes to something more meaningful such as 'audio' or 'network'.