Great work! You've found all the different pieces of the puzzle. I hope you came across something you found interesting along the way.
To get the final passcode from the pieces, put all the letters together and then unscramble them, as an anagram. They'll make a normal, real-life English word. If you have a hard time with anagrams, there's a lot of websites out there that can help with word unscrambling. Also: the solution is case sensitive, so watch your uppercases and lowercases. Good luck!
If you're pretty sure you have the right answer but it's not working, try actually clicking the "unlock" button instead of just pressing Enter. The code on this site isn't uh perfect