The Irmin Schmidt E-Store is currently under construction, meanwhile you can buy the latest releases here:
Axolotl Eyes (including DVD Flies, Guys and Choirs)
Mute Record Store / iTunes
Axolot Eyes (CD)
Mute Record Store
Flies, Guys and Choirs (5:1 DVD)
Mute Record Store
Palermo Shooting - Original Film Score
Mute Record Store
All other Irmin Schmidt releases are also available via MAILORDER at Spoon Records