Micro-SD module from Libelium and uFat-library

After i have try to made my own micro-sd-module i give up,
and so i have by it from libelium.
I use the uFat-library with the SD_uFat_basic-Example.
I can read, dump the file on the Sd-card correctly, but it don't write
data to the file
?? Have somebody suggestions what is wrong.?
?? What is the best library for simple read/write data for using with
this module

I'am using Arduino Duemilanove with Atmega16 and IDE Vers. 17

kind regards from germany
Gerd

I've the same problem.
Any possible solution ???

I'm using arduino Duemilanova ATMega328 and using the IDE version 018

best regards,