Can't write to Disk mounted through samba?

[Rasmuskarlsen]

I have a problem. I can't write to my usb harddisk mounted through samba.

i have followed this guide complete:
http://www.sprayfly.com/wiki/Basic_Samba

Installed IPKG, Automounted my partition at boot.

Im running Olegs 1.9.2.7-7f-pre4 firmware.

But when i access the router through 192.168.1.1

i Se a list of my 2 shares:

Harddisk
USB pen

But i can't write to any of them. Both are running EXT3 filesystem.

My samba config look like this:

[global]
workgroup = <Arbejdsgruppe>
guest account = nobody
security = share
browseable = yes
guest ok = yes
guest only = no
log level = 1
max log size = 100
encrypt passwords = yes
dns proxy = no
server string = <Rasmus500gp>

[Harddisk]
path=/tmp/harddisk
writeable = yes
browseable = yes

[USB pen]
path=/opt
writeable = yes
browseable = yes

What can be wrong? Im completely lost....