okay i am not sure if i understand you....do you not have the ability to change it? like your ftp isn't able to do it? or you can't change it for other reasons dealing with your usergroup permissions? like you don't want to lol.
if you do not have the ability through your current ftp try this one...just pick your mirror download
http://prdownloads.sourceforge.net/f...p.exe?download
usergroup permissions are up to you but you can also change the access masks for forums...never checked to see if any were in the user>username>access masks (above username) but check there if that is the issue.