There’s a program that can decode the cookies, your friend might get decoded while she do chat in the chat room.
If someone decode her cookies, most likely the person able to get the information from the account, like: BOD, ZIP CODE, COUNTRY.
My advise, IF the ID is really worth to fight for, Go call Yahoo! Customer Service, give them the original Information for the ID, tell them that you have too many contacts information on the e-mail, BUT you have to remember everything about the ID beside the Account INformation, like you have to know exactly who is in the friendlist, what is the Alias ID on that account, ect.
You still able to make ID with all number, BUT you have to make the ID via Cell Phone.
If you want to know how to do that, go to Yahoo! website, and search for Yahoo! Mobile.
But my advise, its not worth it, why do you want using screen as number ?, human has name, not serial number, lol………
Beside, IF you make the ID using your cellphone, its gonna eat your airtime.
Peace
Thanks for the Welcome,
I’ll active in this forum