1. Make a backup of a launcher pro home screen from another android device, without any dock icons or with the ones you want.
2. Copy the "/sdcard/launcherpro_backup" directory from your other device onto your Nook Color (into the same place on the SD card), and restore launcher pro from the backup. (I used Astro to do all the dirty work)
Here is a zipped backup of my blank launcher pro setup (no dock icons, no widgets, no nothing):
(I can't make links yet, so just copy/paste the URL...)