need help please[how to remove white parts?]

[Deagon]

I got some experience but, I'm not sure how to remove white parts from a pictures back ground how to do that?

I got photo shop CS5

Here is an example of what i failed on =/

 

[w000t]

Go through your layers and make the white background layer invisible/delete then save it as a .PNG

 

[xonix]

Use magic eraser tool.