need some help please!!

[kat62984]

I downloaded LimeWire today and I tried to download songs and preview them while they were downloading, but when I do that it doesn't play anything and at like the very beginning of the download or the first 25 % it is already like 7 minutes long and by the time it is done downloading it is like 20 minutes long and I don't know how to be able to make it so music will actually play.
Does anyone know how to fix this?? I tried asking my friend that has it and filling out one of those forms but no one can help me so can someone please help me?!?!