/mnt/usbfs and giftd

[Fox_Mulder]

How do I mount my usb disk to /mnt/usbfs?
Currently in my post-boot script I have

#!/bin/sh
/usr/sbin/smbd -D
insmod scsi_mod
insmod sd_mod
insmod usb-storage
mkdir /tmp/harddisk
mount -t vfat -o sync,rw /dev/discs/disc0/part1 /tmp/harddisk

This works fine, except to run giftd I need to mount to /mnt/usbfs otherwise the program cant find the binaries. However if i just change the lines to

mkdir /mnt/usbfs
mount -t vfat -o sync,rw /dev/discs/disc0/part1 /mnt/usbfs

It doesn't work, it complains of /mnt/ being read only. I have tried
chmod +r /mnt but it still complains of it being read only.
Also is there an emule client for the wl-500g yet?
I'm running the latest firmwire (1.9.2.7-5a) and when I try to run giftd it complains of not being able to find /lib/ld.so.1 and somewhere on these forums I read the disk should be mounted to /mnt/usbfs, but I don't seem to be able to do it.
Thanks.