Drupal. PNG transparency on IE6.

Problem: png-images are not transparent on IE6.
Solution:

1) download and install the Drupal-module PNGfix (http://drupal.org/project/pngfix);

2) go to settings page for PNGfix and enter comma-separated list of css-selectors for elements, that wraps the img-tag (for me it is the one css-selector: #logo).