Oil leaking out of engine, overheating, loss of power steering

If the engine overheated with the loss of coolant then expect a warped head. Make sure the radiator hoses have no leaks, cracks or feel spongy. Leaking freeze plugs will cause coolant leaks on the lower part of the engine too. A worn clutch has no effect on the cooling system. Excessive engine wear has possibly happened since the coolant loss. Oil can over heat and cause bearings to fail. It would be a good idea to have the engine checked out to see what the level of internal wear actually is.

If above the pump, it is usually the cam cover gasket in a Camry.

eeek, sounds like a possible head gasket failure. Check your coolant and oil. If the coolant is low top it off, and if the oil is milky, you are getting coolant in your oil which is usually a bad head gasket.

If you are loosing coolant and cant find any leaks check your oil level. If oil level is rising.you have blown a head gasket or cracked a head. Common when an engine over heats badly.

for the powerstearing check the oil and refull when nessesary,turn engine on turn 5 times hole the way left and 5 times hole the way right.
check level oil again refull when needed.the white smoke on that spot
you say can leak from diesel.

You have about $2000.00 worth of problems to fix

There isn't much you could have done incorrectly by changing the radiator to cause the problems you have now. Therefore, I'm guessing that you badly overheated the engine. When that happens, engine seals become brittle and loose their ability to seal which results in oil leaks. High temperatures can cause the compression rings on the pistons to relax, in which case you are now loosing compression which not only causes performance loss but will also pressurize the inside of the engine and cause leaks.. Extreme heating can also allow your timing chain to stretch a bit, also causing performance problems.
If you have already checked the condition of the ignition system to make sure there is no arcing and spark loss, I'd do a compression and or cylinder leak-down test to check the internal condition of the engine.
If everything turns out to be OK inside, then treat this like any other performance problem and test all sensors, run a code test and make sure the air filter is clean and the converter is flowing well. As for oil leaks, Replace seals or gaskets that are leaking.

It sounds to me like the serpetine belt broke, DO NOT continue to drive it. The water pump (for engine cooling), the power steering pump, and the alternator (electrical system) are no longer operating. Have it towed to a shop or have someone put a new belt on it.

Sounds like the engine has siezed, possibly due to loss of coolant and then overheating.If so, this is major repairs. Did the temperature guage show overheating, did the engine oil light come on, is there any oil in the engine ? You need to take the car to a garage

Flush the coolant system and replace with new antifreeze.