All the passwords are in the
official walkthrough. Naira's password should be in the diary, it's naira+yourname or if the old bug is still around naira+mc. The mini safe can't be opened yet. The laptop is sluttyhorseparty5, a file in the recycling bin of the desktop.
Check the walkthrough for Ester's folder, I think you actually have to find it. I don't think you can actually use Naira's laptop can you? If you can and it has a password it's not in the walkthrough, and I can't remember it,
The sites search bar can be set to search only the thread you in, making it easier to look for things.