Restore MDF problem

typical "user didn't backup database before performing transactions" case. (note: below I have renamed my mdf file as my_data.mdf for privacy purposes)

I'm trying to attach an mdf that I pulled off my server into my local database in SQL 2005 but get this error during the attach process:

TITLE: Microsoft SQL Server Management Studio

Attach database failed for Server 'BG-PC43'. (Microsoft.SqlServer.Smo)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=9.00.1399.00&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Attach+database+Server&LinkId=20476

ADDITIONAL INFORMATION:

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

SQL Server detected a logical consistency-based I/O error: incorrect pageid (expected 1:1022464; actual 0:0). It occurred during a read of page (1:1022464) in database ID 9 at offset 0x000001f3400000 in file 'C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data\my_Data.MDF'. Additional messages in the SQL Server error log or system event log may provide more detail. This is a severe error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online.
Could not open new database 'RMTEST'. CREATE DATABASE is aborted. (Microsoft SQL Server, Error: 824)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=824&LinkId=20476

BUTTONS:

OK

looks like that database is corrupted. You should restore from an earlier/different backup.