did you mean to say that you wanted 4images in one server and all image files in another server? of course its possible.
Give the direct link to the image in the URL box of the image upload, similarly for the thumbnail, i use it like that in my site. All images are on imageshack or photobucket. only thumbnails are on my site. check it out if you want to see
Site:
http://www.celebwallpapers.infp/4images
