Attaching Sql Express Files In Sql Server 2005

Hello,
I am using the full version of sql server 2005 management studio to attempt to attach sql express mdf files to sql server 2005.

I was using the databases from an ASP.NET commerce starter kit in sql express. I want to update to sql server 2005, so i detached the dbs.
i deleted the sql express management studio ctp and installed sql server 2005 from the free 6 month trial available online.

I then attempted to attach the sql express files to sql server 2005 and get the following error:

TITLE: Microsoft SQL Server Management Studio
------------------------------

Attach database failed for Server '<servername>'. (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)
------------------------------

Could not find row in sysindexes for database ID 9, object ID 1, index ID 1. Run DBCC CHECKTABLE on sysindexes.
Could not open new database 'C:INETPUBWWWROOT<location>ASPNET.MDF'. CREATE DATABASE is aborted. (Microsoft SQL Server, Error: 602)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=602&LinkId=20476


I also tried with the original mdf files i had downloaded without making any changes.



any help here?

thank you,
K