Um if you're talking about your website then on the first directory (inside public html) However if you're talking about ipb then create a folder and call it forum or w/e you want (you can even do it under the public html folder) and just drag everything in. Hope it helped. EDIT: Also I forgot to mention if you webpage has any images on it make sure you put them in the folder they are coded to. So, let's say the images are coded for "images" make a folder called images and put the images in it.
http://www.halo3pro.bucswebhosting.com For some reason only a few of the images are working. There was already a folder called images under public html so I just uploaded them to that folder. The ones that are working are in other folders in the image folder.
Check what the image slink to in dream weaver or w/e editor you have. Depending on that you'll have to create a folder to have them shown and supported.