Hope i am not stepping on your toes here Foxer
I suggest getting then Xpress Signer instead of the cmd commands or the batfile
tho you still need the certificate from symbiansigned to even use the Program.
[Only Registered and Activated Users Can See Links. Click Here To Register...] << Xpress signer
as for symbian signed application when u get to step 3, i THINK you need to put in the same info that you entered when you registered at the site, and also i put in UTAH as my state even tho i am in sweden(both in profile and app), not sure if this is really needed but after i had changed that i managed to get a working .cer file sent to me, and after that i just used Xpress Signer. with the sultan.key instead of the file that comes with the program, and the password for that keyfile (0123456).
So Basicly
1. follow the guide up until it tells you to use the .bat file, as a precausion make sure to put the same info in the symsigned app as in the register info at the site (+ choose a state both at the site and in the app).
2. use Xpress Signer, add the sultan.key-file, certfile you got from symbiansigned.com and choose what folder the _unsigned is placed, type in password for the sultan.key-file(0123456) and press GO, w8 a few second and voila, file signed and ready to use
I would help out with the signing but as i had huge probs to get it working and have signed for a couple of peeps i too have requested up to my limit
