[Koha] using self checkout

[Jochum van der Heide]

Hi,

I'm trying to use the self checkout module but it doesn't work as expected.

I'm following the instructions on:
http://sites.google.com/a/liblime.com/koha-manual/Home/Table-of-Contents/manual-circulation/self-checkout-module

1. I created patron gave it catalogue and circulate permissions (ticked 
all other boxes as well)
2. I go to: http://mylibraryurl/cgi-bin/koha/sco/sco-main.pl
3. I type the *username* and password for the staff patron
4. Now I see the self checkout page as shown in the manual link above 
(white background).
5. When I now enter any card number in the box next to "Please enter your 
cardnumber:" I get back to the OPAC like page saying:

You entered an incorrect username or password. Please try again!

If on 3. I enter the *cardnumber" instead of the username I get a blank 
OPAC screen.

Am I doing something wrong? I tried enabling the self checkout in the 
global configuration under circulation, but read in the manual that this 
parameter isn't implemented yet.

-Jochum