girlracer

hi there i have recently bought a ford galaxy on an 02 plate 2.3 petrol, i got it quite cheap as it was a non runner, however while looking at it mt partner has come to the conclusion that the engine is seized and it needs a new one, also he thinks the speedo is knackered as well as you cant see the milage. Anyway my point is that there is only 1 key its a small key no more than mayb 4mm think, barely thicker than the key bit its self, almost looks like a spare key, it has no remote door buttons on it or anything like that, my thought us that its the wrong key with no "chip" in it or something and thats why it wont start????? Am i barking up the wrong tree and my partner is right or could i have a valid point, wanted to ask you lot on here b4 i mention it to him lol