gas leak

it could be the rubber tubing between the gas tank and the hole that you fill the tank from. sometimes that rubber tubing dries out and cracks, and then you have a gas leak. if thats the problem, its a really simple fix.

and now the antifreeze is leaking, and the engine is over heating...

A better description would be usefull of all the problems. First and fore most. What exactly do you mean by 'the front wheel drive going out' It's not a 4wd vehicle so if the front wheel drive goes out it isn't moving. Secondly, where is the fuel leak coming from roughly. It's a fuel injected car so turning the key to run, without starting, should pressurize the fuel line. If it's a leak allong the fuel line or in the engine bay it'll usually spray under these conditions. If it's leaking at the back it could be as mentioned above or a damaged fuel tank, you'll have to have your friend look and give us a better idea. If the antifreeze is leaking, where is it leaking from? The radiator, the radiator cap, the overflow, a hose, or from the engine? Details are very useful.