May have been RetroLefty. There are two Retros on this forum.
Not sure if you are aware, but if all you wish to do is play MP3s streamed from an SD card, there are already libraries for the VS1053:
Here's a tutorial:
http://www.geeetech.com/wiki/index.php/VS1053_MP3_breakout_board_with_SD_card
It shouldn't matter using two separate modules instead of this particular one in the tutorial.