No, they have nothing to do with each other.
Yes. The head gasket forms the seal between the engine block and the head(s). The valve cover gasket seals the gap between the valve cover and the valve train it is covering.
NO. The valve cover gasket seals the valve cover from leaks. The valve cover covers the valve train and it's components and it bolted to the top of the head. These components sit atop the head. The head is bolted directly to the engine block with another gasket. Water and oil flow through the head.
If you get a new engine it will have a new head gasket
Gasket that goes between head and valve cover to prevent leaks
Valve cover gasket holds oil from the valves from leaking off the top of the head . Head gasket is lower and holds cylinder pressure between the cylinder head and the engine block.
The head gasket seals the head to the engine block. Coolant and oil flow through the head. The gasket prevents then from mixing together. The valve cover gasket only prevents oil from splashing onto the engine and exposing the valve train and moving parts to the outside of the engine. No coolant makes contact with the valve cover gasket.
No you do not.... the valve cover only bolts to the head, and the head bolts to the block... True- these are two different jobs. When changing your valve cover gasket you may just want to ensure that your head bolts and lifters are still torqued down properly. Otherwise, DO NOT remove the head gasket if you simply want to change the valve cover gasket. when replacing the head gasket you should replace the valve cover gasket and may need to (depending on make & model) replace the egr gasket, intake mainifold gasket, and exhaust manifold gasket ...but not the other way around. If your replacing the head gasket ask your local auto shop if they carry a head gasket kit that includes everything necessary in one box...but if your just changing the valve cover gasket then just change that.
Not necessarily. Check the rocker gasket.
You can change the head gasket by removing the valve cover. Remove the gasket and clean the gasket surface. Put the new head gasket on the cleaned surface.
The valve cover gasket, on a 2004 Jeep liberty, can be found by removing the valve cover. Peel the gasket off of the head and replace with a new gasket.
Assuming you mean "valve cover gasket", the gasket seals the valve cover to the head so as not to leak oil.
An oil leak there is probably a valve cover gasket leaking. it would not require head gasket replacment. Try tightning the bolts on the valve cover. If that does not work then replace the valve cover gasket. Yes it could be the head gasket as there are oil passages in the head and i have heard that head gasket on saturns are prone to failure,look around the valve cover for sings of a leak hopfully that's all it is because replacing the head gasket is costly on th 1.9 sohc