@Nostromo
I had/have the same issue. My login just don't work with the AmiStore
application. Actually it's not true, it work two times, but than it
"threw" me out during adding stuff to the cart, etc.
I resolve it with a re-implementing of the AmiStore application in
java. You can used it to buy stuff etc, but with the following premise:
My java implementation cannot download what you buy/bought.
The download has to be done with Updater application on an
Amiga. And to be sure that it works, you must be able to
login with your account on the AmiSphere application in the
prefs directory.