Playing WMA on Samsung Behold II

First, I am not able to connect my Behold II via USB to my computer and have to add music to my memory card by plugging my memory card straight into my computer.
Second, the only files I've been able to play on my Behold music player are MP3 formats  which I only have a few . I really would love to be able to have the player recognize all the songs on my memory card which are WMAs. How can I get the music player to play my WMA files on the phone?