Fighting pointers in C

I thought I understood the basic concepts of pointers according to the C tutorials, but I really get confused when I actually code. I have a few questions:

1 - Let's say I have:

customList arrayOfLists[3]; //global
//...
void someMethod()
{
   int i;
   for (i=0; i<3; i++)
   {
        customList l = arrayOfLists[i];

        //METHOD1
        //Next time I come back to this function, element is still there!
        removeFirstElement(&l);              

        //METHOD2
        //Next time I come back to thsi function, element is gone!
        //removeFirstElement(&(arrayOfLists[i])); 
   }
}

Why don't both Method 1 and Method 2 work the same? In both cases, I basically say delete the first element of the list located in addressX. Does it create a copy of the array?

2 - What is the difference between:

struct1.ptr1->ptr2->someIntValue //1
&(struct1).ptr1->ptr2->someIntValue //2

The second method does not make sense to me, and I do not know what is happening there, but it seems to work. I expected the first way of working, but this does not give me the correct answer.

3 - Suppose I do this:

ptr2 = ptrToStruct;
ptr1 = ptr2;
ptr2->intProp = 5;
ptr2 = ptrToStruct2;

Is ptr1 pointing to the original memory location, or is it the same ptr2? What is ptr1-> intProp?

Thank.