The peel banner does not work with IE 6. It prevents showing all pictures on joomla site and does not appear in left or right corner, but in the centre of the site.
With IE7 and IE8 it is showing correctly, however there is a problem with opening the hyperlink after clicking the banner. You have to remain the mouse cursor on the banner during the page is downloading. If you move the cursor outside the banner the page stops downloading.
It works ok with firefox.

Hmmm, i thought this module worked fine in all browsers.
Which template are you using it with?