Somewhat off-topic, but does BW: Eruption have any sound files? I remember downloading it when I was on dialup (smaller version) and then when I downloaded the version with custom sound, finally, I didn't see (or hear ><) any difference.
The lite version was also designed for low end PC's in mind. BattleF08 once told me that the level of details such as the number of trees on the map was greatly reduced... most likely replaced by the ugly generic forest model.