Moving the login bar from the top to the side

[ncd]

I want to move the login bar from the top to the side... how to do it?

I was inquiring about it earlier, and this is what Glenn had suggested:

You can move the code from /includes/templates/your_template/common/tpl_header.php to another file, to display wherever you want. You may need to tweak the presentation to get a good vertical display. I put mine in the top of my left sidebar - check it out for an idea.

I tried this, but one look at the tpl_header file and I understood that I would not be able to do it myself.

I basically want it to be a sidebox, rather than a bar. Is there a sidebox already made that does these functions?

In the file there are the tags:

<div id="headerWrapper">
<div id="navMainWrapper">
<div id="navMain">

Do these have to be changed to something else or is it nowhere in this league? My PHP skills are limited to sendmail and form related stuff.

I am using a modified version of the mostlygrey template. (Changing that was easy enough, just changing the palates in the CSS file.)