Problem Uninstalling Early Net versions & hotfixes

My PC is a P4 2.4ghz IntelMB, 1gig ram, and was purchased in 2002.
With ALL the problems associated with installing these latest security
updates for the .net framework versions I simply uninstalled the Net 2.0
with no problem, re-installed it and was then able to update the latest
security update for the 2.0 version. However I could NOT uninstall the
hotfixes for the ver 1.1, etc. in reverse order from the add\remove list.
After I re-installed the 2.0 I left it in and installed the Windows Installer
Clean up utility and ran it and the ONLY net framework app depicted was the
net 2.0 ! The 1.1 & 1.0 or there hotfixes are NOT even listed in the utility
even though they show up in the control panel add\remove list.

This is what I have now:
Net Ver. 1.0.3705
Net Ver. 1.0 Hotfix KB886906
Net Ver. 1.1
Net Ver. 1.1 Hotfix KB886903
Net. 2.0

I want to uninstall ALL of these in reverse order and then do a fresh
re-install starting per below:

Net. 1.0
Net. Hotfix KB886906
Net. 1.1
Net. 1.1 Hotfix KB886903
Net. 2.0

Then I could probably be able to install the latest security updates for the
1.1 & 1.0

Do I have to uninstall the net 2.0 again before the Net 1.1 & 1.0 and there
early hotfixes above will be listed in the Windows Installer Cleanup utility
for removal ?

I see NO way of getting the recently released security updates to install
for the 1.1 & 1.0 if I cant uninstall these versions and do a fresh install
of them.

Thanks for any replys.