[TYPO3-english] mm_forum icons not showing

[Miguel]

Cheers friends,

I have installed mm_forum in my website, but the icons that are shown are not correct, it's always showins a blue square with a cross.

For example, instead of showing the correct icon for a new topic, the icon that is visible in the browser is this: 

http://img69.imageshack.us/img69/3616/soq1.png

I did not changed anything, and i made the static includes in my template (pagebrowser, jquery and mm_forum) so why is this showing ?

Kind regards