Attaching DB's to Sql Server Management (User Instantances) Error

I have been working on a website in Visual Studio 2005 Pro using the MS SQL Server that comes with VS. I have tried Attaching those MDF files in Visual Studio to the SQL Server Express Management but it wont let me, get an error::

Error Number: 5133
Severity: 16
State: 1
Line Number: 1

TITLE: Microsoft SQL Server Management Studio Express

Attach database failed for Server 'WYATT-PC\SQLEXPRESS'. (Microsoft.SqlServer.Express.Smo)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=9.00.3042.00&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.Express.ConnectionInfo)

Directory lookup for the file "C:\Users\Wyatt\Documents\Visual Studio 2005\WebSites\AdultUnderWorld\App_Data\aspnetdb.mdf" failed with the operating system error 5(Access is denied.). (Microsoft SQL Server, Error: 5133)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.3042&EvtSrc=MSSQLServer&EvtID=5133&LinkId=20476

BUTTONS:

OK

Here is the info for the Web.config Connection Strings::

<connectionStrings>

<add name="Personal" connectionString="Data Source=.\SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|Personal.mdf" providerName="System.Data.SqlClient" />

<remove name="LocalSqlServer"/>

<add name="LocalSqlServer" connectionString="Data Source=.\SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|aspnetdb.mdf" />

</connectionStrings>

I want to attach the above databases into the SQL Server Management Studio,so how can i go about doing this?

You don't attach this database using Management Studio, it is being used by a User Instance and automatically attaches at runtime of the application. By default, Management Studio works against the parent instance of SQL Express, not your User Instance, check out the blog post that documents how to connect to your User Instance with Management Studio. (FYI - This is listed in the FAQ at the top of this forum, always a good place to check every once in a while to see if your question is answered there.)

Mike