IE8 problem

Hi,
I have problem with the site in IE8 –
All the images stretch and I dont see the background images at the slider
Website: http://creditial.fr/
Screen shot: http://prntscr.com/85x5qc

I tried to put this code and it’s doesn’t help:

/*---explurer8----*/
.avia-msie img, .avia-msie a img { 
max-width: 100%;
height: auto;
width: auto;
}
.avia-msie .logo a img { height: 100px; }

What you suggest to do?
Thanks!!!