Sound in only one speaker
 

Whenever I play a song on my WinAMP the sound only comes through one of my speakers. And no theres nothing wrong with the other speaker because all my other media playing programs play the song through both speakers.

I know it will sound obvious, but check the balance slider. It's happened before. .

wheres the balance slider

In the Equalizer.

all the bars in my equalizer are all the way up

Well, you want the ballance slider to be in the middle. Middle means both. All the way to one side is just one speaker.

http://www.winamp.com/player/walkthrough.php
Main Window > Config Button > Ballance Slider

Unless you are using the classic skin, then the balance is on the right side of the volume control.