customize template.ini to upgrade from msde to express edition?

I need to create the script to upgrade the current named instance of sql 2000 desktop engine to sql server 2005 express edition. I am having difficulty preparing the template.ini and would appreciate help.

[Options]
INSTANCENAME=MY_INSTANCE
SQLBROWSERACCOUNT=NT AUTHORITY\NETWORK SERVICE
SECURITYMODE=SQL
SAPWD=music
UPGRADE=SQL_Engine
SQLBROWSERAUTOSTART=1
RSCANINSTALLDEFAULT=0
RSCONFIGURATION=FilesOnly
RSSQLLOCAL=0

I get an error that this file is invalid..Any clues? I am trying to upgrade existing instance of msde 2k to sql express 2005 and uses sql authentication

http://www.microsoft.com/sql/editions/express/upgrade.mspx

http://www.microsoft.com/technet/prodtechnol/sql/2005/msde2sqlexpress.mspx

http://msdn2.microsoft.com/en-us/ms143491.aspx

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When a parameter includes space characters, you need quote with " or '. For example, the browser account should be specified as SQLBROWSERACCOUNT="NT AUTHORITY\NETWORK SERVICE " or SQLBROWSERACCOUNT='NT AUTHORITY\NETWORK SERVICE'

Note, this account is localized on some localized operating system. You need to use the localized version if required. In addition, MSDE already has its SP4. So please use MSDE SP4 directly.

The following are two command lines that may be useful to you.

1. Install MSDE SP4.

start /wait setup.exe /qb INSTANCENAME=msde4instance SAPWD="<password>" SECURITYMODE=SQL

2. Upgrade to SQL 2005 SP1.

start /wait setup.exe UPGRADE=SQL_Engine INSTANCENAME=msdesp4instance SAPWD=""<password>" SECURITYMODE=SQL