It is true, Germans do tend to be quite good at English (its compulsory at school??).
Anyway, to place a wanted ad would be something like:
Ich suche Zorro Netzwerkkart Ariadne, X-Surf, etc
Ich suche (present simple, 'I am looking for') I suppose this would translate literally as 'I search'
'oder' is German for 'or'
'other' is 'andere' (?) like Dutch I think...
Perhaps a German speaker can correct this, I only learned a small amount of German while I was in Berlin for five days and I don't know the grammar well yet.
I know the word 'netzwerkkart' from ebay :-D
On a side note, I hope to have German lessons soon :-)