Welcome Fabrizio
I also had this problem when I first joined another site and was guided through the process by another member. If you Private Message me your home tel number I'll call you in next couple of days to try and help.
If not I believe there's a thread somewhere on the site advising how to post photos.
Cheers
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Philip
S1 Aero8, 1922 Darmont Sport & MTW on order (yellow!)