I hope you didn't pay over $80 for the camera, because that is just about what it is worth.

There is a website for Megxon products:

http://www.megxon.com/products/S304/S304.htm

This camera is often advertised as a 12 megapixel camera.
It is a 3.1 megapixel camera.

For best picture quality, set the camera for 2048 x 1536 (which is 3.1 megapixels).

......

The EV (exposure compensation) setting should rarely be needed.

Here is an explaination:
http://www.dpreview.com/learn/?/key=exposure%20compensation

For the most part - leave it alone.

.............

That camera uses Alkaline AAA batteries, which will have a very short life. For longer life batteries, you can buy rechargeable NiMH AAA batteries. They will last approximately 3 to 4 times longer that Alkaline AAA batteries. And they are rechargeable.

.................


If you want a good low cost camera with no optical zoom (similar to the one you bought):
Here are products that are backed by major camera Manufacturers:

Canon SD20
Canon A310
Fujifilm A120
Kodak CX7300
Kodak C310
Olympus D395
Olympus D425
Olympus D435
Sony P41

...
..
.