Image resize on browser - bicubic interpolation

Hello, i had a big size with lots of images on a database, recently i changed the layout and i’m using the same images.
The problem is that i resized the images a little bit on the browser.
On ie 8 firefox and google chrome works perfect but on ie7 the images are not rendered perfect.

I found this css snippet that fixed this issue on ie7 but on ie6 the images ate still not perfect.

/* better image scaling with IE */
img {
-ms-interpolation-mode: bicubic;
}

Theres any other solution for this resize well on ie6?

Anyone to help me?

Thanks