Before the story was changed so that the game could be completed in time for the Xbox’s launch, Sam was in the same Vykkers Labs that Munch was in. Production paintings of this facility show that it is Vykkers Labs 13, so there must be or have been at least 12 other Vykkers Labs facilities, any of which could house Sam.
Alcar has limited the Forums’ search feature to words greater than three letters, so I can’t easily find the time you asked about Sam. Searching for occasions where you’ve referred to Nolybab returns only results referring to
Maggie living in Nolybab. The
last time somebody asked whether Sam went down with Vykkers Labs in the Q&A thread, I gave the same answer we have for you now.