Install CF8.01 on vista 64bits

[Heff2000]

I have a new Vista 64 machine and when I do the install of coldfusion 8.01 it
appears to run without errors. however when the install completes and runs the
CF Administrator it generates a page error 500.21

*************************************************************
HTTP Error 500.21 - Internal Server Error
Handler "AboMapperCustom-45559" has a bad module "IsapiModule" in its module
list

Module IIS Web Core
Notification ExecuteRequestHandler
Handler AboMapperCustom-45559
Error Code 0x8007000d
Requested URL http://127.0.0.1:80/CFIDE/administrator/index.cfm
Physical Path D:\data\Inetpub\wwwroot\CFIDE\administrator\index.cfm
Logon Method Anonymous
Logon User Anonymous
***********************************************************************

The error says that the most likely cause is
* 1- ASP.NET is not installed or incompletely installed.
* 2- A configuration typographical error occured.
* 3- Unfavourable pre-condition evaluation exists.
********************************************************

ASP appears to be installed and I do not understand what the items 2 and 3
are.??

I am a newbe to IIS7 and 64 bit Vista.
I am trying to install the 32 bit coldfusion 8.01 Developer.
my web files are all on the D drive under "d:\data\inetpub\wwwroot\"

Any help would be greatly appreciated. I saw that adobe offers free install
support but when I called was told that its cost was $250 per incident then the
Rep I was speaking said he did not know anything about coldfusion and 64 bit so
I should not waste my money and open a case.

Your Help would be greatly appreciated

Thanks
Jim