As far as I Know, replication settings and configuration are stored on distribution database and on every published database.

Which databases did you restore?

I don't know your replication topology, security context...

Have you verified that the user that you are impersonating against linked server have the appropriate permissions?

Couldn't you create the linked server with a name other than MIAMI\SQLINSTANCE2, for...

Check this article

How to send e-mail without using SQL Mail in SQL Server

http://support.microsoft.com/kb/312839/en-us

Regards Ramon

I'm not really sure to understand your problem but I'd try some suggestions.

You can remove Replication for the whole server from the Enterprise Manager >> Tools

You can have a look...

Have you tried to put destination database in BULK_LOGGED mode?

You may also consider turn off triggers while you are processing data.

Regards

How you tried to use BULK insert in the DTS?

You also can change destination database recovery to avoid transaction log growth.

Regards Ramon