Hi to all!

I created an account with shared hosting company using domain e.g. "maindomain.com".
My friend actually has two domains (two different web sites) and I instaled 2nd domain as an addon (let's say addondomain.com).
I installed on both domain Drupal 7 with success. But, when I try to access to addondomain.com I would get "403 Permission Denied" error messge.
I contacted hosting company and the guy from tech support said it's because .htaccess from maindomain.com doesn't allow access to addondomain.com.

I remember I had once installed Drupal 6 on "main" domain as well as on addon domains and it worked just fine.

What should I do?

Thanks for any help,
LAMP