DNN config error -- HttpModules

Trying to do a clean install (several times) of DNN 05.04.04. Followed instructions at KBSearchID=174483 but I keep getting this error. What does it mean and what's the fix? (PS: I don't know code.) Thanks for any help.

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Server Error in '/DotNetNuke/Install' Application.
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load file or assembly 'DotNetNuke.HttpModules' or one of its dependencies. The system cannot find the file specified. (E:\web\jovanovskic\htdocs\dotnetnuke\web.config line 97)

Source Error:

Line 95: <httpModules>
Line 96: <!-- add name="Authentication" type="DotNetNuke.HttpModules.AuthenticationModule, DotNetNuke.HttpModules.Authentication" / -->
Line 97: <add name="Compression" type="DotNetNuke.HttpModules.Compression.CompressionModule, DotNetNuke.HttpModules"/>
Line 98: <add name="RequestFilter" type="DotNetNuke.HttpModules.RequestFilter.RequestFilterModule, DotNetNuke.HttpModules"/>
Line 99: <add name="UrlRewrite" type="DotNetNuke.HttpModules.UrlRewriteModule, DotNetNuke.HttpModules"/>


Source File: E:\web\jovanovskic\htdocs\dotnetnuke\web.config Line: 97

Version Information: Microsoft .NET Framework Version:2.0.50727.3607; ASP.NET Version:2.0.50727.3082