Lori:
Here is the link for the manual for your camera:
http://www.olympusamerica.com/files/oima_cckb/Sty_Z140.pdf
I have a similar camera that sits in a padded case in my car - it takes excellent pictures.
A couple of comments and suggestions:
The sliding door that covers the lens and turns the camera on and off is both a strength and a weakness. It is a strength, because it provides good protection and a very intuitive on/off procedure, but it can wear, and if it does, you might find yourself inadvertently turning the camera off when you don't want to.
The spot and focus modes are excellent, and they provide a lot of control, but if you like to use and control them, you have to turn them on every time you turn the camera on - you cannot leave them on by default.
The extensive zoom range is great, but you need to remember that 140mm is quite long, and blur due to camera movement is a problem if you don't take care to keep the camera still and/or make sure that the shutter speed is high.
As for the batteries, they are a size that was commonly used by a lot of these types of cameras, and are used by other things too, so they shouldn't be too hard to find. I'd due some internet searching if I were you - they are a lot less expensive when you buy them from internet battery stores compared to camera or drug stores.
Have fun!
Matt