@ Mähdrescher:
Guckst du hier: http://www.landtreff.de/viewtopic.php?t=5459
@ Spiffiy:
Use the link 'Profil' in the header of this side.
At the very bottom of your profile-side you will find 2 functions for importing avatars from your hard disk ('Durchsuchen') and from the web.
Max. size is 100x100 pixel and 15 kB.