[jQuery] error with selector using jquery.ifixpng2.js and jquery v1.3.1

[mcologne]

hi,

there comes an error with the following selector... i'm using
jquery.ifixpng2.js or (jquery.ifixpng.js) and jquery-1.3.1.min.js

$('i...@src$=.png]').ifixpng();

Exception... "'Syntax error, unrecognized expression: [...@src$=.png]'
when calling method: [nsIDOMEventListener::handleEvent...

what is wrong with this selector?

best regards m from cologne