(newbie)Problems while testing SioModule22

[LiuFeifei]

Hi,I installed the SioModule22, and when running the scripts in the test directory,
I got the following traceback:

While runing terminal.py, I got:
 debug 1
Traceback (most recent call last):
  File "C:\Python22\Serial\Test\terminal.py", line 43, in ?
    terminal()
  File "C:\Python22\Serial\Test\terminal.py", line 18, in terminal
    fd.open()
  File "C:\PYTHON22\Serial\Serial.py", line 343, in open
    self._chkSioExec(SioReset, (port, self._bufSize,self.cfg['txBufSize']))
  File "C:\PYTHON22\Serial\Serial.py", line 326, in _chkSioExec
    raise SioError, '%s: %s' % (func.__name__, SioErrorText(status))
SioError: SioReset: The system cannot find the file specified. 

while runing Modem.py, I got:
Traceback (most recent call last):
  File "C:\Python22\Serial\Test\Modem.py", line 98, in ?
    testModem(port=Serial.COM3)
  File "C:\Python22\Serial\Test\Modem.py", line 44, in testModem
    fd.open()
  File "C:\Python22\Serial\Test\Modem.py", line 17, in open
    Serial.Port.open(self)
  File "C:\PYTHON22\Serial\Serial.py", line 343, in open
    self._chkSioExec(SioReset, (port, self._bufSize,self.cfg['txBufSize']))
  File "C:\PYTHON22\Serial\Serial.py", line 326, in _chkSioExec
    raise SioError, '%s: %s' % (func.__name__, SioErrorText(status))
SioError: SioReset: The system cannot find the file specified. 


    It seems that something is wrong with the Serial.py, But as a newbie, It's really a hard task for me to find the keys alone, So, can anyone please  give me a hint?

Thanks

Karon