Can I install zen cart in the Yahoo sever?

Hi, guys. When installing the zen cart to yahoo, there's a notice as below. Can anyone tell me what it mean? And how can I go to the next step (for store setup)?

*Installation In Progress...

1044 Access denied for user 'ppmm'@'localhost' to database 'mysql'
in:
[DROP TABLE IF EXISTS upgrade_exceptions;]*

Please help me out!

Can I install zen cart in the yahoo? When I upload the zen cart files to the server, some files failed because they don't accept file names beginning with "." like ".htaccess". What should I do? Can I just change the name of the file by removing the little "."?

During the installation, there's a notice before I can go to the "stroe setup" step:

*Installation In Progress...

1044 Access denied for user 'ppmm'@'localhost' to database 'mysql'
in:
[DROP TABLE IF EXISTS upgrade_exceptions;]*

What does it mean?

That means you have not put the right database info into the includes/configure.php and admin/includes/configure.php

Yahoo Webhosting is not optimized for Zen-Cart. I tried it and it didn't work well with Yahoo Tech Support making it worse. The best solution is to go with a certified Zen-cart host.