I have created a new empty site in the new server, tried SD2007,
stsadm and Central Admin to restore a spbr008 file from an old server
to a new one and get error messages:

Central Adm: Access to e\backup\spbr0008 is denied
Central Adm: Backup Restore is already running (timer job was deleted)

sprestore.log: Adding
SharePoint_AdminContent_503146c8-65c1-4f50-9af6-4ee33b233256 to
Restore list.
[5/7/2008 3:06:44 PM]: Warning: Cannot restore object SharedServices1
because it failed to initialization. Initialization error message:
Cannot locate class information for:
Microsoft.Office.Server.Administration.SharedResourceProvider,
Microsoft.Office.Server, Version=12.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c.
[5/7/2008 3:06:44 PM]: Warning: Cannot restore object
SharedServices1_DB_9338a6ef-23a1-49d5-8578-d6b1d6ae786f because it
failed to initialization. Initialization error message: Cannot locate
class information for:
Microsoft.Office.Server.Administration.SharedDatabase,
Microsoft.Office.Server, Version=12.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c.
[5/7/2008 3:06:44 PM]: Warning: Cannot restore object
GenericBackupRestore because it failed to initialization.
Initialization error message: Cannot locate class information for:
Microsoft.Office.Server.Administration.UserProfileApplication,
Microsoft.Office.Server, Version=12.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c.
[5/7/2008 3:06:44 PM]: Warning: Cannot restore object
GenericBackupRestore because it failed to initialization.
Initialization error message: Cannot locate class information for:
Microsoft.Office.Server.Administration.SessionStateSharedApplication,
Microsoft.Office.Server, Version=12.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c.
[5/7/2008 3:06:44 PM]: Warning: Cannot restore object Shared Search
Index because it failed to initialization. Initialization error
message: Cannot locate class information for:
Microsoft.Office.Server.Search.Administration.SearchSharedApplication,
Microsoft.Office.Server.Search, Version=12.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c.
[5/7/2008 3:06:44 PM]: Warning: Cannot restore object
SharedServices1_Search_DB_45035e3b-4ce6-45f4-8fa7-fb19a7aed12b because
it failed to initialization. Initialization error message: Cannot
locate class information for:
Microsoft.Office.Server.Search.Administration.SearchSharedDatabase,
Microsoft.Office.Server.Search, Version=12.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c.
[5/7/2008 3:06:44 PM]: Warning: Cannot restore object Global Search
Settings because it failed to initialization. Initialization error
message: Cannot locate class information for:
Microsoft.Office.Server.Search.Administration.SearchService,
Microsoft.Office.Server.Search, Version=12.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c.

I don't get it.thanks