Okay so I hope someone may know how to help me with this.

Okay I have limewire basic, and the free downloaded version of itunes.
I know how to get my files that I downloaded onto itunes.
But I want to change the MP3 format to a WMA formet how do I do that on itunes and then I want to make a CD can someone please give me some step by step instructions.
Thank You in advance.