The following link by Crazy Little Projects is the perfect blog to learn the basics prior to starting a sewing project. The blog has a series of pre- learning and learning to sew lessons to imrove your skills which will give you confidence to take on exciting sewing projects. Here are the links to each skill area;
Meet your Sewing Machine This Tutorial shows you how to use Two Janome Sewing Machines, one computerised machine and one non computerised. If you have a different model and make, refer to your instruction leaflet, but if you still get stuck, this tutorial may also give you some great tips as there might be some similarities between the machines.