Embedded Boot Loader

I need to split the flash of a 3000 series rabbit and have a boot loader in one half and the application in the other half. I did this once about 5 years ago using a 2000 series rabbit and DC 7.05 by following the sample provided in TN224.

Does anyone out there know how to proceed using a 3K series rabbit and DC 9.52/9.62 or does rabbit even support this anymore.