The imputil module does not look at the __path__ 
member of a package to find sub-modules. 
To reproduce, create a package with a submodule, i.e. 
directory structure like this:

p1/
  __init__.py
  sub/
     spam.py

contents of __init__.py:
  import os
  __path__.append(os.path.join(__path__[0], 'sub'))
  import spam

contents of spam.py:
  print 'imported spam'


Doing an "import p1" in a fresh Python session will 
succeed.

However, after loading and installing imputil, it will fail:
import imputil
imputil._test_revamp()
import p1  # <-- will not find module spam

Logged In: YES 
user_id=710276

Oops, spaces were stripped out, so just to clarify: 'sub' 
should be a subdirectory of 'p1' in the above example:
p1/__init__.py
p1/sub/spam.py

Logged In: YES 
user_id=710276

There's no uploaded file!  You have to check the
checkbox labeled "Check to Upload & Attach File"
when you upload a file.

Please try again.

(This is a SourceForge annoyance that we can do
nothing about. :-( )

Thanks for the patch. Committed as r53763 and r53764.