I've figured it out, thanks. I am using Red Hat. Anyway, I couldn't get it to work by changing any of the authorizations, and I even gave my regular user ownership of the files, still to no avail. I'm not sure why, but I just created a new directory in my home directory and changed that directory to my download/upload folder, and it will now work. I have to change it to the default folder every time I restart limewire, as it doesn't seem to remember my configuration, but at least it works!