Re: Power Steering
If something was burning, and you found out later the belt was missing it is in all likelihood that it was the belt burning.
A common problem on cars is the alternator jamming. The belt gets dragged over the alternator, or doesn't move and the pulley on the crankshaft just turns the belts. In either case, the belt gets too hot and falls off.
I would advise that you check all pulleys, tensioners, pumps etc. can be turned in BOTH directions by hand. If they cannot, then you should have located the problem component. It will need replacement. Alternators are really hard work to change, if it is that take it to a garage.
A new belt is really easy to fit, and just requires removal of the drivers wheel and the plastic wheel-arch liner. One of the pulleys is on a metal arm. If you put a 15mm spanner on the centre nut and turn (anticlockwise I think) it with lots of force, the tensioner arm will move, allowing the new belt to 'slip' over the last pulley you don't have the belt over (I would advise the last pulley to receive the belt should be the large, black plastic idler - I think this is the nearest pulley to the air con pump if you have it).
The 'power steering' problem may only be because you have no belt driving it. Once you have replaced the faulty component on the auxiliary system (I suspect there is one) the power steering pump will work again. Assuming it isn't the power steering pump that has seized.