Issues when install SQL Server 2005 (hangs and MSXML)

1. Installation hangs on "Setting File Security".
Solution: either wait for more than 24 hours or using below.
http://support.microsoft.com/kb/910070/en-us

2. SQL Server 2005 setup fails when MSXML Core Services 6.0 Service Pack 2 has already been installed
Solution: download MSMXL fix and run it
http://support.microsoft.com/kb/968749