This will put your left column on the right, and your right column on the left, without making your navigation links stop working.
<style>
.a {flip the page}
table table {direction:rtl;}
table table table {direction:ltr;}
</style>
However, there is one more important thing you have to know. If you have super wide things in your comment section, you will lose the horizontal scrollbar at the bottom of your page, and half of your profile wont be able to be seen, so make sure to also read the
Resizing the Content of your Myspace Comments Section Tutorial.