How to use third party flash on Nikon D60?

I have a Nikon D60, and I recently purchased a YN462. I know how to turn on the flash by itself as well as put it on the Nikon's shoe mount, however I can't get them to sync. I don't know much about settings or flash modes, etc so if someone could please tell me step by step how to set it up that would be great! Also, my boyfriend is telling me I might need a separate flash sync because the Nikon D60 is not compatible with third party flashes. But he isn't 100%. Thanks!

Added (1). Obviously I don't know HOW to do whatever I need to do, so just telling me what i need to do isn't very helpful if you don't tell me how. And of course I tried it in M, in auto, any thing i could have done i did.

Here is a discussion of the YN462.

Seems it does not have an optical sync, like the YN460. But they were talking about a 3.5mm sync socket that you should check into.

With a flash like this, there are no modes. The flash requires manual control of the camera and flash. You can't shoot the camera in an auto mode. If you know how, you can use A or S, but in most cases while learning you should be in M (manual) shooting mode. If your camera requires it, take it out of iTTL mode as well.

You must set the ISO, aperture, and shutter speed yourself. You must take the flash into account when you do so, since the flash just goes off at whatever power level you set it at. There's no communication at all with the flash and camera, other than sync.

You have to adjust the camera and flash to obtain proper exposure, and you must do it yourself. It isn't actually difficult, but can be confusing to learn. You must find the guide number of the flash before you can do anything else. Let's say it is 100 feet, which is pretty close anyway.

Your subject is 8 feet away. You divide the guide number by the distance, and you get 12.5, which would be the aperture setting to use on your camera. Since there's no 12.5, you can go up or down.f/13 would be very slightly underexposed, while f/11 would be almost 1 stop over exposed. That's all there's to it to begin with, divide guide number (use the proper one, of course) by distance to subject. If you want to use a specific aperture, you divide the guide number by the aperture to obtain the proper distance to obtain proper exposure. Say you want to use f/5.6. You would then divide 100/5.6 for a distance of 17.8 feet.

Your shutter speed is from 1/60th to max sync speed, which is either 1/200th or 1/250th on your camera. The shutter speed controls the amount of ambient light in the exposure. The slower the shutter, the more ambient light you get. At max sync, you will get "cave" shots, where nothing but the main subject is lit.

The D60 can use just about any flash that will fit in the hot shoe, just not with iTTL automation.