1st of all i didn't know bluecrab deleted shared serials, in anycase mine is unique and official, no one will ever use it but me.
Go to account section, register and then register a SNAK (the one you use right now), from there you will be able to use the friend feature.
I saw you online yesterday and i am avaiable today, simply drop me a PM or make a topic in the right section and i will try to be there.