I had a web designer redo my site.

She launched the new site today, and all my customer data, order history etc are ALL GONE!

my questions are:

by putting the new template in, did she have to wipe out my customer and order info?

how do I go about to retrieving it and putting it into the new template?

-all I really care about is the customer info (so they don't have to sign up again)
and the order history.

anyhelp is appreciated!

thank you!