Placing Blog.. Options

[Rationality]

I have my image mapped, but i dont know what to do with this code:
<!-- begin code provided by createblog.com -->
<div style="
overflow: auto;
width: ###px;
height: ###px;
margin-top: ###px;
margin-left: ###px;">
<!-- end code provided by createblog.com -->
i mean.. i know what to do with it
but everytime i place it into my code, and then all of it into my xanga
everything is messed up..