To take a panoramic you can make many screens of map and assembling them in a picture editor (using paint is more than enough)
That sums it up nicely . It takes quite a bit of time and care. And you end up with a huge file if you save as a full size BMP. I tend to open it later in IrfanView and crop it, resize it and save as a jpeg. I also tend to make different sized versions e.g. 500 pixels wide for use on a Downloads page (anything wider can cause problems for some users).
I heared also don't-know-when that in SH1 you can take a panoramic using -don't-know-what key combination.
I've not heard of that working to make a panoramic. I wish it was that easy.