UBB.threads PHP Forum Software Community Forums UBB.threads 7 Importer Support PhotoPost --> Forum Gallery?

So, can anyone think of a feasible way to do a mass move from one category of PhotoPost to a single 7.5.5 gallery? Say, Camaros category on my PhotoPost to the Camaros category [gallery forum] on my 7.5.5 site?

I don't think I'm up to the task for moving 5,000 photos over 1 by 1...!