Quick! Advice needed on possible Date Change!

[Quirky Cruiser]

We are currently looking into switching our cruise date and we are within 60 days! I am looking at a possible job change and therefore I'm trying to move our cruise up a few weeks to either the 8/2/03 or 8/16/03 western (we are currently booked on the 8/30/03). What kind of fees are involved? I know the cruises are a little more money and we may have to switch from a cat. 9 to a cat.11 Guaranteed (they want big bucks for oceanview!). Has anybody ever done this? I know it sounds crazy, but I may need the end of the month to relocate. I emailed DU, but haven't heard back yet, so I need help and opinions here folks!!! Any advice would be greatly appreciated!