sequences

I have setup multi site, but i have few problems:

BTW, I am converting the existing site to multi site, so need to change the existing system accordingly.

1) I am sharing the users among the sites,
I took the backup of following tables and restored in shared database:
$db_prefix = array(
'default' => '',
'authmap' => 'site_shared.',
'role' => 'site_shared.',
'sessions' => 'site_shared.',
'users' => 'site_shared.',
);

I am creating a new multisite domain that is going to be sharing users and nodes.

Right now I have it set to where my sequences table is shared in my $db_prefix array.

Despite having this set up to where it should be sharing, the sequences table is automatically putting a new row in my sequence table with the new site name (site2).

Rather than just pulling menu_mid and incrementing off that it is creating a new row called site2_menu_mid and incrementing off that.

Is there a way to fix this?

Thanks,
Quinton