My camera doesn't work well in bright lighting Help! (Nikon D5000)?

I've been having problems with my camera recently it's a Nikon D5000, it really doesn't like working in bright outdoors lighting the colours are manipulated and they are really bad quality. I was wondering if there were any secret settings I didn't know about that I may of possibly changed.
Here are some pictures of what I mean (the are pictures all of me because I've been trying to take pictures for my blog of my outfits. And the last one has been edited, but i've trashed the majority of them and they were the only ones I could find)

The "secret" setting is to reset it to the factory defaults.

Next, * check and make sure that your white balance is set for the lighting you are shooting under.
* set your ISO to 200
* use your cameras light meter to choose the correct aperture and shutter speed to produce near perfect exposures.
* make sure that your computer monitor is calibrated and profiled. Viewing image files on a monitor that has never been calibrated and profiled can give you bad information about the files your fine camera is producing.

I had a neighbor jack her D5000 all around using settings she "heard" would make her photos better.

She and played with all the "scene modes", played with the "fine tuning" mode of her white balance, adjusted the D-Lighting, long exposure NR and high ISO NR settings

Looking at the samples you posted shows that file ending in

* 102 is overexposed from 1/2 to a full stop.(look at the cats fur and the lack of detail in it)
* the file ending in 223 is is about 1/3 overexposed (look at the lack of highlights in the models right arm)
* 102 and 223 look like the white balance is close. The whites are white and there does not seem to be any colour shift at all.
* file 557 was shot in the shade, so you see two things 1) an overall blue cast to the image and 2) Low contrast. With the white balance set to shade, the blue cast will no longer be there if you reshoot. The low contrast will have to me slightly increased using a program like Photoshop

Digital photography is all about controlling the management of colour and getting perfect exposures each time you press the shutter release

A nice semester in photography will cure all these issues for you the fastest and with the least frustration.

NOTE:

Here is how you can create a custom white balance:

http://www.xritephoto.com/ph_learning.aspx?action=webinarsarchive&eventid=803&eventdateid=4460

This is how you calibrate and profile your monitor and printer

http://www.xritephoto.com/ph_learning.aspx?action=webinarsarchive&eventid=825&eventdateid=4510