The instances are functionally seperate so you will still need a Linked Server between them, even if they are part of a single cluster.

You could install a seperate instance of SQL as you have been trying, but your first installed instance will be useless and wasting memory. I would suggest uninstalling the...

Start the install from SQLEXPRADV_x86_ENU.exe instead of the start menu, it should then allow you to install Full Text without prompting for installation media

Follow the instructions in part two on this page to install the full text indexing feature: http://kiln.stackexchange.com/questions/1901/how-do-i-upgrade-sql-server-to-enable-full-text-search

Im wondering if some permissions were stuffed somehow after the Windows updates.

You need to narrow down the cause for the Access Is Denied WMI event. You can...

If moving to a different server, you need to script out the original server logins. You can use Microsoft stored procedure to do that http://support.microsoft.com/kb/918992

It would only be required if you've changed user context earlier. The example from books online:

CREATE PROCEDURE dbo.usp_Demo

WITH EXECUTE AS 'SqlUser1'

AS

SELECT user_name(); -- Shows execution context is set to...

Run SQL Server Configuration Manager as Administrator (right click) and try again. What error is in the Windows Application log? What error in SQL log? What are...

There is a box to select the template under the "General" tab when you first open a New Trace.

However, that just sets the options of the "Events Selection" tab.

Under...

When you run SQL Server Configuration Manager, right click-Run As Administrator, then under the Log On tab you should be able to select local system account.

It works if you select TSQL Replay template, then filter on Database Name tempdb, exclude rows without value

Yes it's safe to click, it's just a log file. The second node should be running but not running SQL, that's the definition of active-passive. An active-active would...

It should not have a red dot next to it. Is it a dot or a red down arrow?

Right click on it and "show critical events for this...

You need to troubleshoot the reason for SQL Express engine not starting up and running. You can find why in the SQL Errorlog.

To find where your errorlog is, do...

What do you see when you expand Nodes