How do I get my car to start?

This sounds like the exact problem with my '03 Jetta. First a quick story as to why and how I might be able to help... The car was given to me by my brother. He said the water pump was shot, and was using only water to keep it cool. I found out it was only a plugged thermostat. I had tried to start the car, and the car had frozen up everything that had only water flowing. I wasn't aware of the at the time. I kept trying to start it, cranking over, but not starting. The last time I tried, I heard a loud "POP"! I thought it was a backfire. Well after talking with my brother about everything, and telling him the cooling issue was merely a thermostat issue, I decided to remove the top timing cover (2 clips hold it on). After removing it, I looked at the water pump, felt it, and it felt good, so I decided to put the cover back on. Then I realized the timing belt was a little loose. I was going to tighten the tensioner just a bit, then I noticed the timing belt would move back and forth too easily. Come to find out, the water pump was frozen solid from only having water in the cooling system (I live in Utah where it's constantly below freezing this time of year). Well, when trying to start it, unaware the pump was frozen solid, the "POP" was my timing belt snapping. So, pull your top timing cover back. Just unclip the two clips on top (one under the big aluminum manifold on top of the timing cover, in front, and one under the hose just under the manifold on the back of the cover) and pull the cover towards the passenger side. You only need 1/2"-1" of space between the cover and the manifold. Press down on your timing belt, and get a finger under it and pull up lightly. It should be just as tight as the serpentine belt. If it's loose, you're gonna need to replace it, as well as any other parts that could be bad or missing teeth. As long as your Jetta has a "non-interference" engine, it'll be a very easy, but time consuming, repair/replacement. If you have the "interference" engine, the odds are you're going to have bent valves, will need to replace those and possibly the head and even the pistons. If you don't know which type of engine you have, check the stickers on the car for the size of it, and Google it. Mine has the "interference" engine, but I was extremely fortunate that the timing belt snap was only while trying to get the engine to turn over, causing zero additional damage. Another idea would be a fuel delivery issue. Check your fuel pressure regulator, and all fuel delivery parts. Could be a bad fuel pump or clogged fuel filter, tho unlikely, as you would have had warning signs of the pump surging sometimes and doing nothing other times. I would suspect, HIGHLY, your timing belt is needing replaced. It'll take you about 2 minutes to check your timing belt, and that's literally. It took me about 60 seconds to realize my belt snapped. Google how to pull the cover back if you're not sure, it'll be easier than putting gas in your Jetta...guarantee you this