I don't know the answer to your first question, but the Campaign Map and the Continent Map are just two names for the same thing.How do I obtain ore in the space age? It says on the campaign map. Do they mean the continent map?
I am in SAM. Is this unlocked in the colony itself?
When you are in SAAB, you can get a goods building to produce ore. Space Carrier gives you goods from your present or previous age, so for that you also need to be in SAAB.