no idea why you go to me when the fan-translator of the series told you already that they will not continue this project. You will need to wait for Yen Press to catch up and purchase it from them, it most likely won't end up on the archive. No fan-translation exists or will exist, you can't get a fan-tl of it. Wait for the official translation.
Hello. I may not be Mamue, but I can answer this one. Most of the side stories for SAO are in planning to be worked on by the archive team and uploaded. Versus is currently being worked on to be added to the archive as well. I am currently the one that is working on Versus, but my time has been dedicated to a certain other project. So it'll will be added in due time
Because 2016 we have a movie and for that a mini-novel (Hopeful Chant) what take some time for Reki, we don't get a Progressive volume, but maybe this year...
If we get a novel in winter, then the english version take some time. But because from now we have digital version too, don't have to OCR the books. BUT, if you can, support the author and buy the books. It's not that expensive and if you have fun with (if you search for the next I assume...), it's worth it.
It may or may not end up on the archive. I can't give any details, sorry.
As Ofanaht pointed out, if you like the Progressive series, buy them to support the author. If you prefer to read them digitally, you will be able to order them digitally from Yen Press in a few months.
Your webserver should have modules called authentication. The easiest one is called basic authentication, but is insufficient as the credentials are transmitted in plain-text, at least(!) add TLS encryption in that case. Examples can be found in the documentation, for example in the Apache or nginx documentation.
If you want to know things about webservers and the underlying system and protection, go ask. If it's about the code of the website itself, I won't be able to answer much, as unKHEFTable, a member of my archive team, wrote that for the most part.
I won't be able to give you a step-by-step tutorial, there are too many factors involved, especially security related. Please make yourself familiar with networking, system services and security in case you don't have basic IT knowledge if you plan to set up something similar.
Congrats on Admin status, since Gytis endorses ya, let's give it a go. I can't wait to see how the wikia changes, and appreciate you asking and expressing interest in improving this wikia. Best of luck mate.
Standard warning (don't mind it too much)
Normally, I would require 1 year of activity and leaderboard status for consideration, but as times change so must we, bear mind this is probabtion status, all warning and labels applied. I want you to understand very clearly that should you abuse admin power I will enforce the harshest level of punishment possible, probably banning for several years or whatever.
No, but he was part of the translation of novels that wins major points in my book. This wikia is pretty much based on the translations so translators are like the official source (indirectly in a sense)