Can't upgrade database

I've recently changed hosts, installed the latest version of Zen Cart, transferred all my files as well as the database. I can view all database info correctly, but when I go into my admin none of the customers or orders information, coupone codes, etc shows. I tried running zc_install to upgrade the database but I just get a blank page. Not sure what to try next.

I used fantastico to install ZC if that matters.

And if needed the site is http://zingslings.com/index.php?main_page=

Ok forgot the "i can see the database info" part - just realized I can't. I have imported the database backup I made but none of the info is updating in the database. I'm afraid I have lost every bit of my orders, products, customers, coupons, etc. Anything I can do?