lammert - 2:59 am on Jul 11, 2010 (gmt 0)

It depends on the way your scripts are organized. If the development was fully object oriented, there is a good chance that only a few image references in one module have to be updated. But if the retrieval of images is hardcoded throughout the program to increase script execution speed, it can be a time consuming job to change all image storage and retrieval actions and test them for the new situation.