[markbolyard]

Personally, not know what you mean by "heavily modified" I can't really say how difficult or easy it may be. I would recommend if you have hacks that have been edited into the postbit_legacy, to make a backup of your postbit, place the new right hand postbit code into your template, then add the hacks back in.

Depending on your experience level, you could go about it the way Yorixz mentioned, and use your favorite html editor to move the cells around, but I think that would be more difficult the my first option.