Hi Onnai,
There was a rewrite of Motion Frame Library for better readability. Hence differences in library. Sorry for any inconveniences caused.
The latest version of library is always maintained at http://garden.seeedstudio.com/index.php?title=Seeeduino_Motion_Frame#Downloads and http://code.google.com/p/motionframe.
Please see the examples under each library for a simple demo application. DataRecord and DataAccess folders contain sketches for complete data recording and data reading demonstration.
1.Use DataRecord.pde sketch for logging barometer/accelerometer data.
2.Use DataAccess.pde sketch for reading back the recorded data.
The examples/sketches are adequately commented and explains the operations. The baud rate for the debug serial communication could be 9600 or 38400. Refer the setup() section of sketch.
Let us know if this solves your issue.
Regard,
Viswa