I was thinking of using some models taken from Homeworld 1, all the Kadeshi ships in particular.
now, HW was released in 1999 and and has already run his life, according to Wikipedia its source codes were released too.
First question:
Is it still considered against Copyright to reuse models from a game that is way out of the market now (still cooler than most other games of these days)?
Second question:
Is it considered against Copyright laws to reuse models from a mod that ported the ships (kadeshi) into Homeworld 2?
I couldn't contact the creators and that mod's thread had its last post on 2005.
if neither of the above is doable how can I do what I want to do without breaking laws?
thanks for any assistance.

EDIT: ok, no way.