Well you are in luck because we have a fix and now you can all get on and enjoy the new DLC!!!
Delete whatever you have of the DLC from your Ps3, redownload from within the store and let it finish and install from the store. You may get a corrupted file but keep trying because it WILL work!!! Just try try try again and I promise you will get it 
Regarding those still getting the 80029563 error for Ps3 upon install.
Edit - Well this has worked for many but still a small group that is having problems, if you have tried everything mentioned and feel you wont have any luck after many failed attempts make a thread in the Tech Help section on these forums or contact the official Tech Support team here : http://forums.bethsoft.com/index.php?/forum/139-brink-hardware-and-software-issues-subforums/