Don't have that issue of FSM, but here is a thought.
AFAIK, there never were matching APC and Dropship kits produced. Argonauts I think had kits but they were not too scale and of so-so quality.
My gut feeling is that what was shown in the article might be the NEW diecasts by Aoshima which were not too long ago released.
Aoshima aquired quiet a lot of licences over the last few years and decided to release diecasts rather then reissue the original plastic models.
Be warned of sticker shock though, most of their die-casts retail for around $90 EACH.
As for Aliens kits there were a host of aliens(various), nostradamus, a powerloader, etc most of them should still be available in one form or another.
HTH.