My initial install of 4.3.3 was based on the Starter Kit to a hosted SQL 2005 database.  I got almost all of the way through the install, including install of all/most of the DB components until I received the following message during (or immediately after) installing Module\Forum_3.20.08_Install.zip:

Thread Abort Exception - unhandled exception - thread was being aborted

Stack Trace:

System.Web.HttpApplication.ExecuteStep(IExecutionStep step. Boolean& completedSynchronously) +483
System.Web.HttpApplication.ResumeSteps(Exception error) +539
System.Web.HttpApplication.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context. AsynchCallback cb. extraData) +144
System.Web.Runtime.ProcessRequestInternal(HttpWorkerRequestwr) +300

I was not able to re-start the Starter Kit successfully again, so I tried deleting the DNN website/virtual dir from IIS and re-running the Starter Kit.  I then received the following exception:

Object reference not set to an instance of an object

[NullReferenceException: Object reference not set to an instance of an object.]
  DotNetNuke.Entities.Portals.PortalSettings.GetPortalSettings(Int32 TabId. PortalAliasInfo objPortalAliasInfo) +125
  DotNetNuke.Entities.Portals.PortalSettings..ctor(Int32 tabId. PortalAliasInfo objPortalAliasInfo) +83
  DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e) +5768
  System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
  System.Web.HttpApplication.ExecuteStep(IExecutionStep step. Boolean& completedSynchornously) +64

I tried deleting the DNN website/virtual dir from IIS and re-running the Starter Kit and also tried installing DNN manually.  In all cases, I received the same Object reference error above.

I did not delete that database entries made by my original almost-successful install, as there are many other tables/procedures in the database that cannot be disturbed.  I am not aware of an easy way to uninstall only the tables/procedures with a dnn_ prefix - although I am sure it is possible.  All of my subsequent install attempts had most/all of the tables/procedures already installed.

I'd appreciate any suggestions on how to attempt to install the app from my current situation.  I can't delete the entire hosted database because there are too many other apps installed.  I have not been able to find any combination of uninstall-reinstall that gets me to anywhere other than the same second error message shown above.

The only changes made to the web config were the two connection strings and the SqlDataProvider objectQualifier (set to dnn_).  Minor changes were made to the DotNetNuke.Install.Config, but only relating to passwords, email addresses, site description and site keywords.

Suggestions? 

Kevin Ireland