Aww thanks well to make a banner you go on something like paint shop pro, you open a new sheet shaped like a banner and then you find the pictures you want and put then on the sheet (open them in PSP and move them onto the sheet) then you can decorate it and make have some text on it, saying your forum name or something about you or BB or anything else you like. If you want one like mean erase around the pictures, feather them, then put them on a background or your choice, otherwise, smudge the pictures together. When you've finished, go on PhotoBucket and register, then browse to find your banner (you have to save it on your computer) and upload it. At the bottom of the page there will be a little picture of your banner with an 'Url' underneath it (The first box) Copy and paste that into your 'signature' (In 'edit profile'). To make it appear under all your posts, put [img] before it and [/img] after it.
Hope that helps!!