Hi javamanromeo,
They should remain in tact and all your settings are designed to transfer, but you might want to make backups just in case. Also if you have custom backgrounds or icons in your ObjectDock v1.0 folder you may want to copy them over to the 2.0 directory as well.
If you'd like to backup your settings, head to the run dialog and enter:
%localappdata%\Stardock\ObjectDock\ (or %appdata%\Stardock\ObjectDock\ on XP)
and make backups of the CurrentTheme.ini/Settings.ini/AppImages.ini files found there.
I hope you enjoy OD2!