I thought it might help you get more responses if the spread you're talking about is posted in this thread. The spread can be found in the LWB of the Vision Quest deck, which I just happen to have sitting next to me right now, so I hope you don't mind my unsolicited attempt at being helpful by adding this to your thread.
The spread, as it appears in the LWB, is as follows:
1...2...3...4...5...6
1...2...3...4...5...6
1. Where do we stand in our relationship?
2. What is our spiritual connection?
3. What is our common goal?
4. What is our common task?
5. Where are our inner blocks?
6. What helps?
The book does not explain exactly how to use this spread.
My first instinct would be that the two lines of cards can represent the perspectives of each partner, so you might use the first line for your own view and the second line for the other person's.
However, based on the questions that are asked, they don't sound like questions that would really lend themselves well to having a different answer for each partner. I suppose you could still interpret them that way, and it still seems like the most obvious explanation for there being two lines of cards, but maybe there is another reason you'd want to use two lines of cards? Like, one line could be what you hope will happen and one line could be what is likely to actually happen? Or one line could represent the present and one line could represent some point in the future?
I'm not really sure, as I've never actually used this spread before. Personally, I would probably make some modifications to the spread if I were to use it, especially if I were trying the 12-card concept instead of the 6.