Learning Dutch might not be the easiest thing in the world, it’s also certainly not the toughest thing: grammar and spelling are tied to strict rules that usually can be explained in a few lines. Still, it’s good to have a good teacher and a good book to guide you. If you want to learn Dutch and you want to make a start yourself, you might use this complete Free Online Dutch Course: it contains all the basic grammar, vocabulary and even pronunciation rules you need and a lot of online exercises and tests.
For more advanced students the videosection, the NOS Journaal or the Backgrounds (with the Dutch Royal House on Youtube and Pauw&Witteman)(Extra) are useful. If you feel you still need some help, or just like to contact people who might run into the same problems, you’ll be happy to learn there’s a forum hardly any question remains unanswered.