Problema con .aspx

Hola tengo un problema con leer una pagina en aspx, ya instale la
version del framework 2.0 beta y tengo win XP sp2, sql server 2000
personal edition.

Esta pagina esta en uso en internet, pero cuando quiero ponerla
localmente en una maquina me sale el siguiente error.

por favor ayudenme.
_______________________________________________________________________

Server Error in '/requisicionpatito' Application.

The ConnectionString property has not been initialized.
Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: The
ConnectionString property has not been initialized.

Source Error:

An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.


Stack Trace:


[InvalidOperationException: The ConnectionString property has not been
initialized.]
System.Data.SqlClient.SqlConnection.PermissionDemand() +780779

System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection
outerConnection) +22

System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
RequisicionesToyota.ReqIndexAdmon.Page_Load(Object sender, EventArgs
e) +67
System.Web.UI.Control.OnLoad(EventArgs e) +98
System.Web.UI.Control.LoadRecursive() +71
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
+4192




Version Information: Microsoft .NET Framework Version:2.0.50215.44;
ASP.NET Version:2.0.50215.44