RISE Editor setup/installation error

[lyle....@elpaso.com]

I get an error on initial download setup/installation of RISE Editor.

How do I resolve this issue?

PC running MS Windows XP Pro Ver 2002 SP 3
MS .NET Framework 3.0 SP 1 installed

Contents of RISE Editor install.log:

The following properties have been set:
Property: [AdminUser] = true {boolean}
Property: [ProcessorArchitecture] = Intel {string}
Property: [VersionNT] = 5.1.3 {version}
Running checks for package '.NET Framework 3.5', phase BuildList
Reading value 'Install' of registry key 'HKLM\Software\Microsoft\NET Framework Setup\NDP\v3.5\1033'
Unable to read registry value
Not setting value for property 'DotNet35InstallSuccess'
The following properties have been set for package '.NET Framework 3.5':
Running checks for command 'DotNetFX35\dotNetFx35setup.exe'
Skipping ByPassIf because Property 'DotNet35InstallSuccess' was not defined
Result of running operator 'ValueEqualTo' on property 'AdminUser' and value 'false': false
Result of running operator 'ValueExists' on property 'Version9x': false
Result of running operator 'VersionLessThan' on property 'VersionNT' and value '5.1.2': false
Result of running operator 'VersionEqualTo' on property 'VersionNT' and value '5.2.0': false
Result of running operator 'ValueEqualTo' on property 'ProcessorArchitecture' and value 'IA64': false
Result of checks for command 'DotNetFX35\dotNetFx35setup.exe' is 'Install'
'.NET Framework 3.5' RunCheck result: Install Needed
EULA for components '.NET Framework 3.5' was accepted.
Copying files to temporary directory "C:\DOCUME~1\lmdgsya\LOCALS~1\Temp\VSD49.tmp\"
Downloading files to "C:\DOCUME~1\lmdgsya\LOCALS~1\Temp\VSD49.tmp\"
(11/8/2010 11:38:37 AM) Downloading 'DotNetFX35\dotNetFx35setup.exe' from 'http://go.microsoft.com/fwlink/?LinkId=97964' to 'C:\DOCUME~1\lmdgsya\LOCALS~1\Temp\VSD49.tmp\'
Download completed at 11/8/2010 11:38:38 AM
Verifying file integrity of C:\DOCUME~1\lmdgsya\LOCALS~1\Temp\VSD49.tmp\DotNetFX35\dotNetFx35setup.exe
WinVerifyTrust returned -2146762749
Subject form unknown
Running checks for package '.NET Framework 3.5', phase BeforePackage
Reading value 'Install' of registry key 'HKLM\Software\Microsoft\NET Framework Setup\NDP\v3.5\1033'
Unable to read registry value
Not setting value for property 'DotNet35InstallSuccess'
The following properties have been set for package '.NET Framework 3.5':
Running checks for command 'DotNetFX35\dotNetFx35setup.exe'
Skipping ByPassIf because Property 'DotNet35InstallSuccess' was not defined
Result of running operator 'ValueEqualTo' on property 'AdminUser' and value 'false': false
Result of running operator 'ValueExists' on property 'Version9x': false
Result of running operator 'VersionLessThan' on property 'VersionNT' and value '5.1.2': false
Result of running operator 'VersionEqualTo' on property 'VersionNT' and value '5.2.0': false
Result of running operator 'ValueEqualTo' on property 'ProcessorArchitecture' and value 'IA64': false
Result of checks for command 'DotNetFX35\dotNetFx35setup.exe' is 'Install'
'.NET Framework 3.5' RunCheck result: Install Needed
Verifying file integrity of C:\DOCUME~1\lmdgsya\LOCALS~1\Temp\VSD49.tmp\DotNetFX35\dotNetFx35setup.exe
WinVerifyTrust returned -2146762749
Subject form unknown
Error: Setup has detected that the file 'C:\DOCUME~1\lmdgsya\LOCALS~1\Temp\VSD49.tmp\DotNetFX35\dotNetFx35setup.exe' has changed since it was initially published.