Hi Susan,
Thanks for the kind words, yes you can teach old birds new tricks. Without getting into it fully I'll simply say that getting your bird familiar with you is the key. Start slowly by placing your hand into the cage for a few minutes everyday, don't try to touch the birds, just let them get used to your hand being there. Progress from there by making the same noise every time you do it, call their name or something but keep it the same always. Eventually your birds will get used to you, perseverance is the key, good luck.
Gordon.