Here is the Walt Disney Records Japan site with the track info (in Japanese, of course).
http://www.disney.co.jp/records/tdr/index.html
It does confirm that both the Dreamlights Christmas, and Christmas Fantasy CD's are only one track each. Disappointing, but oh well, I still can't wait to have them.
Harborside Christmas CD's are pretty nice. They have a different feel from TDL's Christmas Fantasy shows. The first few years, it had a more "New York City" feel, which was intentional. Now, it's just a bit more jazzy than what TDL does. In 2005 they did a show called "Minnie's Nutcracker", which was different from past shows. Plus, the Christmas lagoon show "Candlelight Reflections" has nice music. 2004's CD is the exact same as 2003's though, so you only need to buy one if you want that music.