Manually uninstalling SQL Server 2008 and any SQL Server remnants on a Windows 2008 Server

I went here to the following link and found this to follow.
http://support.microsoft.com/kb/955404

I think as long as I follow the two steps I am okay. I wrote the following code to use.
1. CD %ProgramFiles%\Microsoft SQL Server\100\Setup Bootstrap\Release
2. setup.exe /ACTION=uninstall /FEATURES=SQL,SQLEngine,Replication,FullText,AS,RS,IS,Tools,BC,BOL,BIDS,Conn,SSMS,ADV_SSMS,SDK /INSTANCENAME=MSSQLSERVER

My question is this.....? Looking at the image below. I assume I need to do the above commands having pointed to : INSTANCENAME=MSSQLSERVER
1. INSTANCENAME=80
2. INSTANCENAME=90
3. INSTANCENAME=100
4. INSTANCENAME=MSAS10.MSCRM
5. INSTANCENAME=MSAS10.SRSC_CRM
6. INSTANCENAME=MSAS10.SRSCCRM
7. INSTANCENAME=MSSQL10.SRSCCRM

Once I run those 7 times with all those Instance names changed for each database that would not install. Then I would think restart and then I can install a new version of SQL Server 2008.

When I do that it get the following Error. I thought I was following this by the book.......
TITLE: SQL Server Setup failure.
------------------------------
SQL Server Setup has encountered the following error:
Instance Name MSAS10.MSCRM for product Microsoft SQL Server doesn't exist. Specify a valid instance name.
Error code 0x84B40002.
------------------------------

I'm I following this correctly. The error makes me think no......obviously. I just do not see the error in what I am doing. Please advise thank you.
SQLListProgramFiles.jpg
SQLListProgramFilesDrillDownInto.jpg