Well this is my first Nooby tutorial.
In this tutorial I will show you how to make transparent sprites.
You will first need Paint.NET
You can get it here.
http://www.download.com/Paint-NET/3000-219...cdlPid=10879258
Ok lets start out with something simple I will use the mini player from the rainbar.
And i will fill it in with black paint.

As you can see it not transparent well lets make it!
click on "layers" and then press "layer properties"
and you should get something like this

now i will make the opacity 150 and watch!

paste in the new sprites DON'T CHANGE THE NAME THOUGH!
now lets see it at work!
Enjoy <3 If you have any questions feel free to PM me.

NOTE: Always make a backup just in case