Can't get Olympus Evolt e-500 To focus at all?

So, I'm pretty new with cameras and I just acquired a Olympus Evolt E-500 for free, so Of course I gladly accepted. The only DSLR i've ever worked with was the Nikon D40 in my tech class, and that was much easier to handle and had better image quality. The auto focus does nothing. The focus on the actual lens is either broken or its just so sensitive that I can't see a difference in image quality. I got good pictures for 1 day, and now they are so blurry. The lens I have is a Zuiko 14-45mm. I heard that's not a good lens anyway. I'm wondering if Anyone else had this problem, and what settings they used? Or if anyone has any other solutions to my problem. Also, I would love for someone to link me to some nice and cheap beginners lens that is compatible with my camera. And one that has good focus…

There isn't much wrong with the 14-45mm. Have you checked the viewfinder's diopter setting?

If it's incorrectly set, you won't be able to see through the finder properly.