Hi,
Just to elaborate on this topic, i had the same problem and tried to copy the tekkit classic sound files into tekkit lite, but i cant get it to work, i always just took the files in the resources folder and copied them into the resources folder for lite, but i still have no vanilla sound, the mods work fine, but the rest is still missing. Am i doing something wrong, or can anyone help me any other way?
thanks
Edit: Need to correct myself a bit, the music works perfectly fine, but the sound effects are missing.