Oooh okay it worked.
So basically what you do is open the md5 one in notepad. I had no clue. It gave me the reference mD5 in notepad and it does match up. Why do we need to download the md5 thing anyway? Couldn't the reference md5 just be pasted right below the download link? That was confusing for a lay-person who initially thought I was supposed to check both files with an mD5 checking program. Just letting yall know. But apparently it's not much of a problem for most people.
Just to confirm: For step #7, Oasis users should manually install customer_KOA_5.7.4_update -- right?