Bitmaps On Owner Draw Button in WinCE 6.0 Device

Hello Everyone,
I am a fresher, currently working on a Application for WinCE 6.0 Device
using MFC.
I have created a MFCSmartDevice Application (SDI without Doc/View
Architecture). I have created 4 buttons using tools on Dialog Box and in
the properties i have set the Owner Draw parameter to TRUE. But after
creating the variables of these buttons i am not able to assign Bitmaps to
these Buttons. can anyone please help me on how to set bitmaps in WinCE
6.0MFC Application?

And also i want to generate a preview of the image selected by the user.
but i don't have any idea about it. I have tried the method used for
generating a preview in a normal MFC App but it is not supported on this
platform / SDK. Please help me with this.!!

Thank You.

Don't know a lot about MFC but is you want to change to C# I have
experimented a bit with image buttons using jpg and transparent png. 
Let me know.