Well, realize that these examples are real good for demonstrating the basics of socket / network programming. However, turning them into something practical will be a long road indeed.
The first thing you need to do is understand what is going on and why. What the various socket functions are doing, what the contents of the data structures are, and what order you need to use to do any particular thing.
Complex client/server network apps are also often multi-threaded, which throws a-whole-nother dimension of complexity into the mix, but we can get into that later.
So, let's start with getting you real familiar with what is going on with the examples, then we can step up to more complex functionality when you're ready.Study the examples, and read a bit through the (windows or linux) socket documentation; you can find both on the internet with a simple google search on Winsock (the MSDN documentation is best) or unix sockets. Bookmark these resources, because you will be referencing them often in development.
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