Thanks for the assistance...
I tried to pilots.de but they don't send me my password, despite several attempts.
I also looked up Eurowings but they said you need sponsorship from an educational institution to do an internship which I won't be able to get.
Lufthansa Cityline were helpful and asked me to send in an application by post. LH proper weren't helpful, insisting that all applications be received, despite the problems with this that I pointed out to them....
Thanks again, and any other suggestions welcome...