There are two ways to do it if you can't find any earlier information:
For small hands:
Take the passanger side windshield cowl off and you should have a small bit of access to get to the plugs and wires. I have done this before, and I DO NOT RECOMMEND THIS. It is possible to do anything, but only do this if you have problems getting the upper intake manifold off or are uncomfortable taking off the UIM.
For ALL PEOPLE:
Disconnect the upper intake (hose, TB, vacuum lines, EGR mushroom, UIM). This will give you total access to the wires and MOST IMPORTANTLY the plugs. The rear plugs are sunk into the block just like the front ones, so it's much easier to get to the rear bank of plugs when the UIM is out of your way. Just stuff the LIM with rags to make sure nothing falls in and you should be good to go. When I did my plugs the second time, this method saved me roughly half the time and ALOT of anger.