@NeuroticFish, where did you read that you can recover them that way? I think that you're referring to Multibit HD. He said that he used Multibit Classic. I have no idea what's the difference between these two, but there may be one.
I have used Multibit Classic and it certainly had
no seed at all. The only Multibit with seed was Multibit HD (Hierarchical Deterministic).
So I guess that OP was used the incorrect words and he has Multibit HD, hence I went on the path of recovering from seed.
If this won't work or you have better idea, be my guest, I don't mind at all.