Im not a programmer but I need to do it now. Our thesis is about creating a system for a specific company. I am just a systems analyst and I can understand codes. We already have a programmer but he is about to quit. I'm a newbie in c# and I need to learn now to make this system of ours. Can anyone teach me the basics?

Explain your situation to your tutor/ lecturer as soon as possible. They may give you more time considering the circumstances.

Also there are quite a lot of link in the sticky posts at the top of the C# forum that will help you out.