no worries...i dont know about xbox, but my best guess (because ive only seen answers that are pretty sure, although it doesnt seem anyones wrong) is that sega (or whoever makes mlb 06) bought the rights to make the baseball games, just like ea sports did for football. so theyre gonna be makin it, and not making MVP anymore. EA will still put out its new NCAA baseball, which i think is sick, but other people dont seem to like it too much.
it sucks because the mvp series was my favorite series of all time, and my favorite game.