For some bizarre reason, my affiliates module on my site will not stretch to accommodate the further content I have added to it, so as a work around, I've decided I need to use a vertical marquee.
I've done some research - and it seems that the tags won't work in this instance.
Is there any way to do it with Javascript/DHTML, without the need for any CSS?

Does the module use a fixed pixel height or fixed percentage height to use? If it does, could try removing the fixed height and it might allow it to stretch to fit the further content in the module.