Vivian, thats not true at all.
You should have the same look in IE6 as you do in 7.
spinellimd, the simple solution is make sure you are adjusting the right class in CSS.
If you think you are and its still not working, create a new div container, and put outside the div container you need.
In your CSS:
[code]
.test {
margin-top: #px;
margi-left... etc.
}
.youcorrectcontainer {
code code code
}
[/code]
In the new CSS container, dont copy and paste everything, just put in positioning code.
In your php file, you should have this...
[code]
<div class="test>
<div class="yourcorrectcontainer">INFO HERE</div>
</div>
[/code]
Before going this route, make sure you are adjusting the right CSS div container in your style.css file.
Hope it makes sence.