Installation IIS7 on Vista Ultimate

I upgraded to Vista Ultimate from Xp.

Since that upgrading I have never been able to access the local webservice.

It returns various errors but is clearly not running.

Research on the web indicates that this behavior has been observed by many
people and that it is caused by the fact that IIS6 was installed and running
on Xp. To the best of my knowledge there was no warning to un-install it
before the upgrade.

I applied the Vista Sp1 hoping that some fix had been made to a Vista bug.
After the upgrade I still cannot get the IIS7 to run.

Before the Sp1 upgrade I tried to un-install the IIS7 repeadedly. It could
not be removed. After the re-boot all the entries would remain checked.

After the Sp1 installation I was able to un-install the IIS7 BUT now I
cannot get it to re-install. It reports an error but gives no further
information.

I must get IIS7 to run. For one thing it is needed to use Expression Web.

Any help would be appreciated.
--
John Olbert