Inserting multiple images into single matrix region

Question

Hi,
I want to insert multiple images into a matrix data region with some background color dynamically in my report. Like the number of images are not know, will be decided at runtime and should be placed in any square(region) of matrix depending on certain condition. Right now i am able to place/display only one image in the data region.
Please suggest how this can be achieved. Please respond urgently.
Thanks