Cannot restore a corrupted Master Database

I am getting very desparate at this point.  I've been out of business for 5 days now, with no end in sight. 
My Master database, in my Maximizer instance is missing.  I have posted the issue under http://social.technet.microsoft.com/Forums/en-US/sqldatabaseengine/thread/e60b7c6a-c6d0-47c9-9a36-c15a12366db1 and Amit Banerjee has been helping out.  Unfortunately, I can't get the Master database in my SQL Server Express 2005 to be rebuilt. I have a copy of the MSSQL.1 folder on the desktop, along with a backup of the database in my backup files.
I've tried to run the script from a command prompt:
start /wait <CD or DVD Drive>\setup.exe /qn INSTANCENAME=<InstanceName> REINSTALL=SQL_Engine REBUILDDATABASE=1 SAPWD=<NewStrongPassword>
Where <InstanceName> is MAXIMIZER, the name of t ...