There are bearings and a seal in the spot where the release lever goes into the cover. The spring you can see on the outside of the cover connected to the release lever. I think Lowblueranger was talking about the clutch springs, but you don't need to worry about those springs if you are only replacing the cover. It is much eaiser than you are making it out to be. Here is what you need to do. Remove the two 8mm bolts holding the bracked for the clutch cable on the upper portion of the cover. Then remove the end of the clutch cable from the release lever. Next remove the remaining 8mm bolts holding the cover in place. Now the cover is off. Clean the gasket material residue on the engine side. If the new cover has the bearings seal already installed you are good to go, if not you will need to install those components. remove the inside bracket from the old cover and install on the new cover if it did not come with it already there(this will make sense when you look at the inside of the old cover). Put the new gasket in place after you put a few dabs of sealant where the engine cases meet. Position the release lever so it will actually pull on the clutch release shaft when the clutch lever is engaged. Bolt it up, re-connect the clutch cable, make sure it operates correctly and you are good to go. It sounds much worse than it actually is. If you are contemplating doing this yourself, you obviously have the mechanical apptiude to do it, so you should be fine.
Pudsky 2001 ZX-12R
I am mentally challenging, so if you are reading this, consider yourself mentally challenged