Check your wiring once more.
AD0 must be connected to ground or 3.3V (with solder jumper). Connect it to ground for I2C address 0x68.
SCL and SDA are connected directly to the Arduino, but you could add extra pull-up resistors to the 3.3V. The resistors could be 4k7 or 10k (the board already has 10k pull-up resistors, but I prefer 4k7).
You don't need the INT, you could leave it open.
The CLKIN and FSYNC can be tied to ground, because they are not used.
If you have all this, the scanner sketch should be able to find it.
I'm confused !
Is this crossposting ? http://arduino.cc/forum/index.php/topic,111698.0.html
If you bought a new sensor module, and started a new topic, you should have mentioned at the beginning that you made this posting before.
It's okay, as long as you let us know.