Did you look at the links. And did you read the datasheet of the sensor ?
I can read the datatsheet for you, and write what's in there, but you have to read it yourself.
There are two versions :
- KXPB5-2050 (with analog outputs)
- KXPB5-2353 (with digital interface SPI)
If the photo in your first post is the breakout board you have, you have the version with the analog outputs.
This pins are shown in Table 4 of the datasheet.
VDD = 3.3V (the sensor is made for 3.3V but also 5V is allowed)
GND = GND
Vmux : this is a outputs, don't connect it.
S0, S1, Aux_in, PD, ST : connect to ground.
X_output, Y_output, Z_output : connecto to three analog inputs of the Arduino, like A0, A1, A2.
Next time, if you want to buy a sensor, check out these sites: