No they excavated the entire weapons platform and moved to Area 51. The whole system was in violation of the Antarctic Non-Proliferation Treaty. Just moving the chair wouldn't solve this problem. The chair is mearly the control interface. Just moving it would be like if you're mother told you to move your computer so you move the monitor and keyboard leaving the computer behind. 

It would require much work but that us what theh did.

Anyway, that wasn't my point. My point was that we have a ZPM lying around and no weapons platform for it to power therefore it would most likely be installed in Earth's most advanced ship, The Langford.