Transmission leak, Did I mess up with the gaskets? Options

[ambergris]

Hey everyone,
I recently rebuilt my transmission. My first attempt at such a job, and I used RedBeard's very helpful article. So now it shifts great, but it leaks. As I drive, tranny oil is getting all over my exhaust and leaving a smelly smoke trail behind. It looked like the oil was pooling mostly at the end cover, and on the right side, so I thought it was the speedo drive and replaced the O-ring. Still leaking.
Now I'm wondering if I screwed up those paper gaskets. When I took the thing apart, there was 1 paper gasket between the end cover and intermediate plate, and 3 paper gaskets between the plate and housing. I thought all of them had the color of oil soaked brown paper. I had purchased a Pelican transmission gasket set, and it came with 1 cover/plate and 3 plate/housing gaskets, and they were all brown. So I thought perfect! I'll just use them all.

At this point, I'm not sure what my next steps should be. Anybody want to throw some suggestions out?