what is the easiest way to decipher tempo?

i want to be able to audio and determine its tempo. I have Cubase 4

suggestions?

what is the easiest way to decipher tempo?

Get Cubase 7.

http://www.steinberg.net/forum/viewtopic.php?f=20&t=31066&p=200158#p200158

Depends on the audio file.