C#: Where to begin?

So, I downloaded Visual C# from Microsoft’s website. I installed everything. I have .net framework 2, 3, and 3.5 (for some reason).

When I start VC#, I get error # 1.
When I try to create a new project, I get error # 2.

For last 2 days, I’ve been deleting, installing, and uninstalling a few things, and these errors just made my day worse…

I’d like to ask, what exactly do I need for C#?
And, how do I fix these errors?

Thanks. I searched online, but not in too much detail (because my head hurts now).