LuckyBackup permissions denied

openSUSE 12.3
KDE 4.10.5r1
LB 0.4.7

I think I know what caused it but not how to fix it.

I have another thread about trying to copy a 4gb file to a FAT 32 partition. Not permitted so I reformatted and changed the partition to ext4.

Now when I try and run LuckyBackup and he tries to mkdir, I get the permission denied error.
I think the owner of the USB-HDD is Root and I need to change it.
So far I have not had any luck. Maybe I used the wrong partition manager program, Gparted.
I cant see how to do it within Dolphin.

Any suggestions ?