Image map in header problems

Afternoon,

I am having problems setting up an image map within the header of my install of wordpress 3.2.1 (twentyten theme). I can get an image map working within a post but just not in the header…

https://studentaccommodationyork.co.uk/wp-content/uploads/2011/10/SAY_main_logo_new.jpg

This is the image i want to use an image map on but i was wondering where i add the html code into the header.php file? I cannot find the correct section…

Can anyone point me in the right direction..

Thanks in advance…