Say I have 3 Yahoo mail accounts (the free basic ones) - "A", "B" and "C".
"A" is the account I use most and I want that all mails received at
"B" or "C" to be farwarded directly to account "A". Is this possible
and how is it done?

Secondly-If I want to send a COMPLETE folder of my mails from account
"A" to "B" - can it be done and how?

farward is possible.
But  sending a complete folder is not possible right now :)
Thanks,
-Richie

Thanks Richie! :-)