Here is a paste of the tail end of the file where the system.web starts , there are several of them
</appSettings>
<siteRepository path="D:\Sitebuilder\Sites">
<caching enabled="true" expiration="0:01:00"/>
</siteRepository>
<system.web>
<globalization culture="en-US" uiCulture="en"/>
<customErrors defaultRedirect="~/CustomError.aspx" mode="On">
<error statusCode="403" redirect="~/AccessDenied.aspx"/>
<error statusCode="404" redirect="~/CustomError.aspx?Status=404"/>
<error statusCode="405" redirect="~/CustomError.aspx?Status=405"/>
<error statusCode="406" redirect="~/CustomError.aspx?Status=406"/>
<error statusCode="408" redirect="~/CustomError.aspx?Status=408"/>
<error statusCode="409" redirect="~/CustomError.aspx?Status=409"/>
<error statusCode="410" redirect="~/CustomError.aspx?Status=410"/>
<error statusCode="411" redirect="~/CustomError.aspx?Status=411"/>
<error statusCode="412" redirect="~/CustomError.aspx?Status=412"/>
<error statusCode="413" redirect="~/CustomError.aspx?Status=413"/>
<error statusCode="414" redirect="~/CustomError.aspx?Status=414"/>
<error statusCode="415" redirect="~/CustomError.aspx?Status=415"/>
<error statusCode="416" redirect="~/CustomError.aspx?Status=416"/>
<error statusCode="417" redirect="~/CustomError.aspx?Status=417"/>
</customErrors>
<trace enabled="true" pageOutput="false" requestLimit="50"/>
<!-- Compilation -->
<pages>
<controls>
<add tagPrefix="SiteBuilder" namespace="SWsoft.SiteBuilder.Modules.WebControls.Repeaters" assembly="SiteBuilder.Modules.WebControls"/>
<add tagPrefix="SiteBuilder" namespace="SWsoft.SiteBuilder.Modules.WebControls" assembly="SiteBuilder.Modules.WebControls"/>
</controls>
</pages>
<compilation debug="false" defaultLanguage="c#">
<assemblies>
<add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Messaging, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Runtime.Remoting, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Management, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Configuration.Install, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="Microsoft.VisualC, Version=8.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Deployment, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Drawing.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Security, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Runtime.Serialization.Formatters.Soap, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.EnterpriseServices, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
</assemblies>
</compilation>
<!-- End Compilation -->
<!-- Providers -->
<siteMap defaultProvider="Admin" enabled="true">
<providers>
<clear/>
<add name="Admin" type="System.Web.XmlSiteMapProvider" siteMapFile="Admin.sitemap" securityTrimmingEnabled="true"/>
<add name="Wizard" type="System.Web.XmlSiteMapProvider" siteMapFile="Wizard.sitemap"/>
</providers>
</siteMap>
<roleManager enabled="true" cacheRolesInCookie="true" defaultProvider="RoleProvider" cookieName=".ASPXROLES" cookiePath="/" cookieTimeout="30" cookieRequireSSL="false" cookieSlidingExpiration="true" createPersistentCookie="false" cookieProtection="All">
<providers>
<clear/>
<add name="RoleProvider" type="SWsoft.SiteBuilder.Security.RoleProvider" applicationName="Sitebuilder"/>
</providers>
</roleManager>
<!-- End providers-->
<httpModules>
<add name="SsoSessionModule" type="SWsoft.SiteBuilder.Web.Modules.SsoSessionModule"/>
<add name="SupportedBrowserModule" type="SWsoft.SiteBuilder.Web.Modules.SupportedBrowserModule"/>
<add name="LoggingModule" type="SWsoft.SiteBuilder.Web.Modules.LoggingModule"/>
<add name="UISettingsModule" type="SWsoft.SiteBuilder.Web.Modules.UISettingsModule"/>
<add name="SiteAuthorizationModule" type="SWsoft.SiteBuilder.Web.Modules.SiteAuthorizationModule"/>
<add name="RemoteStorageModule" type="SWsoft.SiteBuilder.Web.Modules.RemoteStorageModule"/>
<add name="StatisticsModule" type="SWsoft.SiteBuilder.Statistics.StatisticsHttpModule, SiteBuilder.Statistics"/>
</httpModules>
<httpHandlers>
<add verb="*" path="ExternalLogin.ashx" type="SWsoft.SiteBuilder.Web.Handlers.ExternalLoginHandler"/>
<add verb="*" path="ImageHandler.ashx" type="SWsoft.SiteBuilder.Web.Handlers.ImageHandler"/>
<add verb="*" path="LocalizedImage.ashx" type="SWsoft.SiteBuilder.Web.Handlers.LocalizedImageHandler"/>
<add verb="*" path="Logo.ashx" type="SWsoft.SiteBuilder.Web.Handlers.LogoHandler"/>
<add verb="*" path="Images.ashx" type="SWsoft.SiteBuilder.Web.Handlers.Images"/>
<add verb="*" path="Site.ashx" type="SWsoft.SiteBuilder.Web.Handlers.SiteResourceHandler"/>
<add verb="*" path="AjaxHandler.ashx" type="SWsoft.SiteBuilder.Web.Handlers.AjaxHttpHandler, SiteBuilder.Web"/>
<add verb="*" path="JsClasses.ashx" type="SWsoft.Ajax.AjaxCore.ScriptRegistratorHandler, AjaxCore"/>
</httpHandlers>
<authorization>
<allow users="*"/>
</authorization>
<anonymousIdentification enabled="true" cookieName="SBANONYMOUSCOOKIE"/>
<authentication mode="Forms">
<forms loginUrl="~/Login.aspx" defaultUrl="Admin/Default.aspx" enableCrossAppRedirects="true" path="/" name="asu" protection="All" timeout="30" slidingExpiration="true"/>
</authentication>
<sessionState mode="InProc" timeout="30"/>
<urlMappings enabled="true">
<add url="~/Admin/Server.aspx" mappedUrl="~/Admin/SubNodes.aspx"/>
<add url="~/Admin/SystemInfo.aspx" mappedUrl="~/Admin/LicenseMgmt/SystemInfo.aspx"/>
<add url="~/Admin/LicenseMgmt/LicenseMgmt.aspx" mappedUrl="~/Admin/LicenseMgmt/SystemInfo.aspx"/>
</urlMappings>
</system.web>
<location path="Wizard">
<appSettings>
<add key="SessionExpiredRedirectUrl" value="~/Wizard"/>
<add key="AntiDOSTimeout" value="200"/>
</appSettings>
<system.web>
<pages configSource="siteBuilderControls.config"/>
<webServices>
<soapExtensionTypes>
<clear/>
<add group="High" priority="1" type="SWsoft.SiteBuilder.Modules.Storage.Connector.WebServices.ServiceSecurity.SecuritySoapExtension, SiteBuilder.Modules.Storage.Connector"/>
</soapExtensionTypes>
</webServices>
</system.web>
</location>
<location path="Admin">
<appSettings>
<add key="SessionExpiredRedirectUrl" value="~/Admin"/>
</appSettings>
<system.web>
<pages configSource="siteBuilderControls.config"/>
<webServices>
<soapExtensionTypes>
<clear/>
<add group="High" priority="1" type="SWsoft.SiteBuilder.Modules.Storage.Connector.WebServices.ServiceSecurity.SecuritySoapExtension, SiteBuilder.Modules.Storage.Connector"/>
</soapExtensionTypes>
</webServices>
</system.web>
</location>
<location path="App_Themes">
<system.web>
<pages configSource="siteBuilderControls.config"/>
</system.web>
</location>
<location path="Controls">
<system.web>
<pages configSource="siteBuilderControls.config"/>
</system.web>
</location>
<applicationSettings>
<SWsoft.SiteBuilder.Web.Properties.Settings>
<setting name="Web_FeedbackService_FeedbackService" serializeAs="String">
<value>
http://localhost/Statistics/FeedbackService.asmx</value>
</setting>
</SWsoft.SiteBuilder.Web.Properties.Settings>
</applicationSettings>
</configuration>