Description of problem:
Starting audio-convert-mod from the command line results in a crash.
Starting it with --help results in a different crash.

Version-Release number of selected component (if applicable):
audio-convert-mod-3.45.1-1.fc7.noarch

How reproducible:
100%, if there is not .audio-convert-mod directory.

Steps to Reproduce:
1. rm -rf ~/.audio-convert-mod
2. audio-convert-mod
3.
  
Actual results:
A window pops up, then this appears in the terminal window, and the window
disappears again:

Traceback (most recent call last):
  File "/usr/share/audio-convert-mod/acm-runapp.py", line 88, in <module>
    MainApp = acm(paths)
  File "/usr/share/audio-convert-mod/acm-runapp.py", line 55, in __init__
    callbacks.Controller.__init__(self, GLADE_FILE, paths)
  File "/usr/lib/python2.5/site-packages/audio_convert_mod/callbacks.py", line
230, in __init__
    oldVersion = prefs.get('Preferences', 'Version')
UnboundLocalError: local variable 'prefs' referenced before assignment


Expected results:
No crash.

Additional info:
`audio-convert-mod --help' results in:
Traceback (most recent call last):
  File "/usr/share/audio-convert-mod/acm-runapp.py", line 82, in <module>
    usage()
TypeError: usage() takes exactly 1 argument (0 given)