First of all i would fix the driver problem.
You can do a search for cp2102 drivers, this came up fx.:http://www.pololu.com/docs/0J7
When your driver is OK you could try the Loop-back-testhttp://arduino.cc/forum/index.php/topic,73748.0.html
If this is OK, you know that your device is working
And just a note: the connections atleast on my cp2102 is: tx->tx rx-->rx
If all this is OK try uploading to the Arduino, and if it fails, try pressing reset when the message : Sketch size ... appear in the serial monitor