NNTP download ect.

Question

hello, First of, i love this site and his comunity! Thx for al the great tutorials and examples. Ok here's my problem. I'm new to the real wolrd of programming (beyond the basics). I know the standard C++ and C#. Now i want to learn more. I want to know how to connect and retreve a file from a NNTP news server. All i can find on the internet is the C# tutorial of how to retreve messages (just text) and i want to retreve files (files bigger then 10mb). Also when i download from the NNTP (with grabit) i see that i download with 4 lines. How does this work? If somebody can explain this to me, or guide me in the right direcction. It will make me a very happy person. greetz svenmeister