How to make the checkboxes work in ie 7 and 8

[CubAfull]

it may in fact be simple, but you all know good old ie 7.. this one is giving problems in 8 also. baiscally in the form when you click on the image, it should also check the box, this works fin in all browsers but the two metioned, any one have any ideas? code:\[code\]<form><input type="checkbox" name="interest1" id="interest1" value="http://stackoverflow.com/questions/13868471/x"><input type="checkbox" name="interest2" id="interest2" value="http://stackoverflow.com/questions/13868471/x"><input type="checkbox" name="interest3" id="interest3" value="http://stackoverflow.com/questions/13868471/x"></p> <p align="center"><label for="interest1"><img src="http://stackoverflow.com/images/interest1.jpg" width="152" height="152" alt="" /></label><label for="interest2"><img src="http://stackoverflow.com/images/interest2.jpg" width="152" height="152" alt="" /></label><label for="interest3"><img src="http://stackoverflow.com/images/interest.jpg" width="152" height="152" alt="" /></label></P><!-- code making checkbox be an image--></form>\[/code\]