Since the overhaul of the website late last year and earlier this year, a lot of the links to the NetEA website have been severed. The section on that website which formerly contained a whole array of official and developmental army lists has been moved or removed.
However they have another section under the tournament rules section that has maintained the current official Epic Armageddon army lists. See link below:
https://www.net-armageddon.org/tp/If the website developers of this website can relink their former links to army lists like feral orks, Ghazghuls warhorde, White Scars, Adeptus Space Marines, Iyanden Eldar, Biel-Tan Eldar, and so many more army lists to the relevant PDF files available on that link, then the problems will sorted out.
If that is a problem, or just too difficult or time consuming, then just have a new topic posted in the NetEA developmental section with the missing official army lists titles mentioned and the link I have posted above placed in it.