As said before along this topic you can only do it by your self if your server provider uses a unix server. If on the other hand it uses a windows server, you will have to ask your host suport to change the permissions for you. This is asuming you don't own or administrate the hosting server.
In any case be sure that the permissions are set to the "uploads" folder and to all subfolders so that allso new subfolders (created by the forum) recive this kind of permissions. My server provider forgot to do that today, so I can only write or create folders in "uploads" but not in "uploads/administrator" (for example).
Regards, and good luck!!
Edited by tommybrc - 20 May 2005 at 8:25am