Sp2: AJAX FM: Images View: Display problems with IE6 and FF

I have some display issues with my IE 6.0 with the default file field picker and the images view.

Most of the time the images overlap each other and you can not select any of them (cf screenshot).
Each time you click on an other directory, the left menu (directories) appears as a layer under the container menu.

Would it be possible to make something cleaner with less screen flicking while navigating your directories?