How to display compass and satellites strengths and positions

[SSDD]

Hi,

I need to display compass and satellites strengths and positions in my PDA. I had found some useful websites:

Part 1:
http://www.codeproject.com/KB/vb/WritingGPSApplications1.aspx?fid=98498&df=90&mpp=25&noise=3&sort=Position&view=Quick&fr=76&select=918977

part 2:
http://www.codeproject.com/KB/mobile/WritingGPSApplications2.aspx

But I had already wrote my own form and coding that can get the latitude and longitude already when detect GPS. And I find that the above websites coding is rather hard to understand. Anyone had any others resourceful websites? Or any ideas to display the compassand satellite strengths and positions?

Thanks in advance!