I\'m a solo developer running Visual Studio 2008 and looking into MSBuild to improve my build process.
Almost all of the tutorials I\'ve found so far have plenty of info
Your .csproj file is a MSBuild file. So you are actually using it already.
You may of course wish to create a separate build file to have more control, especially within a continuous integration or nightly build say.
If you simply wish to edit your project build file then you can use the IDE to edit some settings such as pre and post build actions or edit the Xml itself by unloading project and right click and editing.