How do I downgrade from Mavericks back to Snow Leopard?
I upgraded to Mavericks (10.9) from Snow Leopard (10.6.8) just a while ago and I hate it. My folder tags are now a tiny circle which is inconvenient because what I liked about them was that they highlighted folders I wanted to see clearly. My mouse's scroll wheel is now moving in complete reverse (scrolling down requires me to move the wheel upwards), my fan is going bonkers and making a lot of noise and from the sounds of it plus judging by how fast my battery is draining it's as if my CPU's being worked to the bone. I used to be able to see the size of each folder at the bottom of the Finder window when I'm scrolling through, now it's just a blank!
Is there any way I can downgrade back to the OS I upgraded from? I know you can do a Time Machine backup restore if you have Mountain Lion or Lion but I was wondering if the same can be done for Snow Leopard? I currently don't have my installation cd (as I accidentally left it back home before I flew back to school). Help!
MacBook Pro (17-inch Mid 2009), Mac OS X (10.6.8)