what do u mean by the client has sent u a database? I mean is it a database backup or the database file(mdf)??
If it is a backup of the database then you can create a empty database and restore the database backup on this new database.
If it is a database file (mdf) then attach the database to the database server.
To restore a dump from other Server , you don't have to create an empty database !! Use RESTORE COMMAND WITH MOVE option (See BOL) or USe Enterprise manager , Right click any existing database : Click Restore : Change the name to New Db , In Options tab , amke sure the Physical File Path is Correct matching to the Server you are restoring , Click Force Restore and Hit OK .
For MDF Files If you do not have Log File with it , sp_Attach_singly_file might work but you are likely to loose the transactions which are uncommited and sitting on MDF file ..