Removing head cover in 1991 4Runner

Can anyone give me any instructions (maybe some links)?
The oil is dripping from under it. I have to change the gasket, and I am wondering if I can do it myself.

What engine is in the 4Runner?

it is 3VZ-E, 3.0 V6

Have you tried simply torqueing down the bolts holding the headcover to see if that stops the leak?

Sure you can do it yourself. I can't give you instructions until I get home.

I've tried torqueing down the bolts but it still leaks. It's leaking from the back of these platic covers.