Execute DTS From Asp.net 2.0 - Package Does Not Exist Error

I am trying to execute a dts from asp.net, but getting an error
€œThe specified DTS Package ('Name = 'DTS_USERS_LIST'; ID.VersionID = {[not
specified]}.{[not specified]}') does not exist.€?
I know I have saved the dts
package on the sqlserver, and have run it from the server
successfully.

Here is my
code:

Package2Class package = new Package2Class();
object pVarPersistStgOfHost =
null;

package.LoadFromSQLServer(

sServer,

sUID,

sPWD,
//DTSSQLServerStorageFlags.DTSSQLStgFlag_UseTrustedConnection,
DTS.DTSSQLServerStorageFlags.DTSSQLStgFlag_Default,
null,
null,
null,

sPkgName,
ref
pVarPersistStgOfHost);


package.Execute();

package.UnInitialize();

// force Release() on COM
object
//

System.Runtime.InteropServices.Marshal.ReleaseComObject(package);
package = null;

any inputs would be
aprpeciated.