Marco,
if you are using sql server 2005 you can use the option to "initialize with
backup". If not then you can do a nosync initialization. Once done, you'll
need to remove identity attributes for a nosync initialization.
Cheers,
Paul Ibison SQL Server MVP, www.replicationanswers.com

Yes, but on SQL 2000 you need to make the identity columns, triggers and
constraints Not For Replication.

--
Hilary Cotter

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Can I make a backup of my Publisher DB and then restore it on the
Subscriber, or this operation can generate problems?

Tanks for your answers.

I'm using SQL 2000; I have not understood very well the correct
procedure.
I have only few tables, every table has a unique identifier, no
dependencies, no idexes, no triggers.
If simply I export all data in tables, for example in .txt files, and
then I reimport the data in the other DB?