Help with “2nd Sidebar/Navigation”

So I need a little help with a navigation/sidebar. Please forgive the lame attempt at explaining what it is I’m trying to do, I’m not very familiar with PHP, and wordpress. I’ve used movableType for years. So here it goes.

I’m trying to get the drop down menu thats located on this theme here.
The code I’m working with is not from that theme, but the theme with the code I have is no longer avail on the authors site. Its called merdeka.

The merdeka theme calls for the sidebar to be put in a rolldown/pulldown/dropdown menu (like the similar theme linked above).
Its called in the header with:
<?php get_sidebar(); ?>

Because the theme I currently use applies the sidebar.php in the standard way of a column to the left of the posts, I can’t use the get_sidebar code as the merdeka them does.

So I need a “second” sidebar. I already have the code copied, and adjusted in a file called “sidebar2.php”. I just need a way to call it in the header code. I thought I could use get_sidebar2, but I think I’m missing something somewhere, like a function code? I mean how else would wordpress know what “sidebar2” is and where to get it right?
But I have no clue, again I don’t know much about PHP – just the basics, and very little about wordpres codex.

If you could help I would be very grateful. If you need more info to help, the code behind the merdeka theme maybe? My yahoo/aim user name is
squirrelslax. email is thegeek.101[at]gmail.com

Thank you,
Marshall