I remember reading it few years ago and actually enjoying it. Now...not so much actually. But really interesting take, i think. I name it half-official because these novels were actually published as far as i know and half-fanfic because i really doubt that FOX or any other companies which posess rights to publish anything Alien-related even know about it. Anyway.
Here's one problem though: these novels were written in Russian. Google translator maybe. I don't know. Hope here at least some people able to read in that language.
And final thing that i gonna to tell you about it:..friendly xenomorphs.
P.S. Novels written by Russian writeress Marina Naumova. Enjoy!