I would suggest that you clear the cache for ObjectDock.
This means unloading ObjectDock and then deleting the "ObjectDock" (and/or "ObjectDockPlus") folder found in "C:\Documents and Settings\USERNAME\Local Settings\Application Data\Stardock" folder. The "Local Settings" folder is a hidden folder.
Note - there is no folder named "cache", just folders bearing the relevant program's name which contain the cached user preferences.
Clearing the cache for a program removes the user preferences and forces the program to load with the default settings.
I wrote a mini tutorial on clearing the cache here: http://corkyo.wincustomize.com/Articles.aspx?AID=82461
With any luck, this should remove the loading of the former theme, and allow you start from scratch.
I have not suggested saving your current theme before clearing the cache due to possible issues with the current theme. Once you have sorted the issue, you can set the dock(s) up in the way you want, and then save the theme. This will allow you to reload it if you ever need to clear the cache in the future.