When I upload my ssh key, it tells me that the key is invalid. I'm sure my public key is fine! This is probably caused by your public key not having a comment. Open your public key file and look if it ends with a small comment. If not, add one. It should like something like:
ssh-rsa AAAAB3NzaC1yc2EA...q89tLQDeeLAiiQt80P2tiNIOw== Comment
The eV-membership tab is not actived, even if you are an eV-member. It is still being developed.