[SOLVED] How to: Put autoresponder code in specific part of header

Hi!

I have tried to put my autoresponder code in my Atahualpa Header, above part of my header image, using an absolute position div. The form, however, only settles in the correct position when the window is maximised. When restored down to a smaller window, it is out of place (in both FF and IE). What can I do to resolve this, or what other way can I get the autoresponder form in the position that I need it?

Not sure if I can post links, but it may be helpful to see what I am trying to describe, my site is http://familyfitnesssecrets.com/ and you can see the autoresponder code on the right hand side of the header image.

Thanks for any suggestions!
Asad