Issue installing 5.3 over the top of 5.2

I'm having an issue after installing 5.3 over 5.2. 

The details are as follows:

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After installing 5.3 over the top of 5.2 I get a sitemap issue.
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The site map provider was of type System.Web.XmlSiteMapProvider. The web.config should be configured to use type="Unify.Connect.Web.IdentityBrokerSiteMapProvider".
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: Unify.Framework.UnifyConfigurationException: The site map provider was of type System.Web.XmlSiteMapProvider. The web.config should be configured to use type="Unify.Connect.Web.IdentityBrokerSiteMapProvider".

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Broker is set up to use IIS for the web interface

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The stack trace is as follows:

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[UnifyConfigurationException: The site map provider was of type System.Web.XmlSiteMapProvider. The web.config should be configured to use type="Unify.Connect.Web.IdentityBrokerSiteMapProvider".]

   Unify.Connect.Web.MvcApplication..cctor() +4876

[TypeInitializationException: The type initializer for 'Unify.Connect.Web.MvcApplication' threw an exception.]

   ASP.global_asax..ctor() +28

[TargetInvocationException: Exception has been thrown by the target of an invocation.]

   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0

   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) +197

   System.Activator.CreateInstance(Type type, Boolean nonPublic) +105

   System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark) +1484

   System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +289

   System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture) +27

   System.Web.HttpRuntime.CreateNonPublicInstance(Type type, Object[] args) +79

   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +294

   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +333

[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]

   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +525

   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +124

   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +719

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Let me know if you need any further information.

Thanks,

Hayden