adding search box to header?

Hi I have no coding knowledge what so ever but I am trying to do something that I fear will have to involve some coding to do. I would like to move my internal search box for my site that right now is provided in the side bar as part of the theme up into the very bottom right corner of the header. I have tried to read through other peoples posts but I am still a little confused because I havent seen anyone with the same theme as me and I am worried about corrupting my site. I use the bouquet theme on my site and I am hoping someone can break this “how to” down barney style for me. If possible I’d like to make it as non intrusive to the header as possible.

Many thanks to anyone who can offer some assisstance.