Glad it's sorted Ann, no-ones too old for Bebo, it's a social networking site for ANYONE! You have people of all ages as your friends on there, so I don't see what some peoples problems are. I'm putting my bets on them being jealous that you're just a nice friendly person, and the only thing they can get their kicks off is criticising the way happy, normal people live their life.
Remember, it's never been a crime to be super-friendly.