Create Database From Code

Hi, I want to create a database setup on a server. I've scripted my database from sql server express. I've tested the code in the query window and it worked. When i pasted the same code in a sqlcommand command text....the debuger threw an sql exception....saying the sintax is wrong near keywords GO, USE, some forgein keys, and so on. Here is a chunk of the script.
USE [master]
GO
/****** Object:  Database [estate_management]    Script Date: 09/13/2006 09:19:32 ******/
CREATE DATABASE [estate_management] ON  PRIMARY
( NAME = N'estate_management', FILENAME = N'D:MSSQLestate_management.mdf' , SIZE = 2048KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
 LOG ON
( NAME = N'estate_management_log', FILENAME = N'D:MSSQLestate_management_log.ldf' , SIZE = 1024KB , MAXSIZE = 2048GB , FILEGROWTH = 10%)
 COLLATE SQL_Latin1_General_CP1_CI_AS

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[admin]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[admin](
    [admin_id] [int] IDENTITY(1,1) NOT NULL,
    [log_in_id] [varchar](20) NOT NULL,
    [password] [varchar](50) NOT NULL,
 CONSTRAINT [PK__admin__07020F21] PRIMARY KEY CLUSTERED
(
    [admin_id] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF, FILLFACTOR = 1) ON [PRIMARY],
 CONSTRAINT [IX_admin] UNIQUE NONCLUSTERED
(
    [admin_id] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END
 
Thanks for your time.