The toolset is written in C# and requires the .NET Framework to run. However, this only applies to the toolset itself. The installation packages you create with the toolset do not require any extra framework or software to be installed on the target computer. Similarly, there might be a few additional utilities required for some special applications (merge modules, patches) but only on your build computer, the client will only need the finished and self-contained installer package, nothing else.
Your content is the meat and potatoes of your website. With all of the Google Panda updates, it is extremely important that your content is unique and relevant. If you have multiple pages with the same content (or if you have your content on other people’s websites), you will run the risk of getting penalized by Google and your search rankings will suffer.
Your website needs a place to live on the web, and the quickest way to reserve your web address is to find a web host. There are a variety of cheap web hosting providers, and each one has a specialty. Look for a web host that offers a price that fits your budget, has the web tools you need to create your envisioned website, and provides support when you need help or have problems.