Just a question for you. Is the failure to load that you're reporting interrupting or interfering with your game play? If not, it may be as designed. You should naturally load new content as you encounter it.
I was trying to use the code for the decoration item for pirate101 the other day .... and everytime i try it the redeem code box keeps showing up to the top left corner of my screen and will freeze up before i can accept the item or enter in the real code.
Try switching to a different browser to redeem your code and let me know if that works better. I've had a report that there are some issues redeeming the code in Safari (although I'm unsure if that's Safari on Mac, iPhone/iPad/iPod, or Windows).