You may not be able to do everything I listed with that camera, you'll have to check the manual but a couple tips that might help:
- DOF is related to aperture not iso, iso is image sensor sensitivity and if lighting conditions are not very bright you can bump up the iso setting to brighten the image, but be careful too much will result in a grainy picture.
- If you can't shoot in aperture priority then try using an action setting which will give you a faster shutter speed.
- If you can't use a manual WB setting then auto is probably your best bet, you can adjust it after with software. Experimenting would be best.
- Best results will come from using minimal zoom, do not zoom in unless you have to. Less zoom will give you more light (higher f number) resulting in a faster shutter speed and sharper picture as well as a greater DOF.