Problem while installing SQL Server 2005 Express Edition

I am facing a problem while installing SQL Server 2005 Express Edition on my machine. Included below is the text of the logfile Summary.txt

Microsoft SQL Server 2005 9.00.2047.00
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OS Version : Microsoft Windows XP Professional Service Pack 2 (Build 2600)
Time : Tue Feb 13 20:49:01 2007
ABC-621F39F0E0D : The current system does not meet recommended hardware requirements for this SQL Server release. For detailed hardware requirements, see the readme file or SQL Server Books Online.
Machine : ABC-621F39F0E0D
Product : Microsoft SQL Server Setup Support Files (English)
Product Version : 9.00.2047.00
Install : Successful
Log File : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0015_ABC-621F39F0E0D_SQLSupport_1.log
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Machine : ABC-621F39F0E0D
Product : Microsoft SQL Server Native Client
Product Version : 9.00.2047.00
Install : Successful
Log File : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0015_ABC-621F39F0E0D_SQLNCLI_1.log
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Machine : ABC-621F39F0E0D
Product : Microsoft SQL Server VSS Writer
Product Version : 9.00.2047.00
Install : Successful
Log File : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0015_ABC-621F39F0E0D_SqlWriter_1.log
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Machine : ABC-621F39F0E0D
Product : MSXML 6.0 Parser (KB927977)
Product Version : 6.00.3890.0
Install : Successful
Log File : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0015_ABC-621F39F0E0D_MSXML6_1.log
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Machine : ABC-621F39F0E0D
Product : SQL Server Database Services
Error : SQL Server Setup could not connect to the database service for server configuration. The error was: [Microsoft][SQL Native Client]SSL Provider: The certificate chain was issued by an authority that is not trusted.
Refer to server error logs and setup logs for more information. For details on how to view setup logs, see "How to View Setup Log Files" in SQL Server Books Online.
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Machine : ABC-621F39F0E0D
Product : Microsoft SQL Server 2005 Express Edition
Product Version : 9.1.2047.00
Install : Failed
Log File : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0015_ABC-621F39F0E0D_SQL.log
Last Action : InstallFinalize
Error String : SQL Server Setup could not connect to the database service for server configuration. The error was: {Microsoft}{SQL Native Client}SSL Provider: The certificate chain was issued by an authority that is not trusted.
Error Number : 29515
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hi...did u get the solution, I am also facing the same problem.

will appreciate any help.

thanks