Deployment Utility error

I am getting the following error when trying to run a deployment utility. The server only has .net framework 2.0 and sql server 2005 (rtm) installed.
If it's any help, this server was recently upgraded from the june ctp to rtm.
This is a production server, so a solution involving as little disturbance to it's current state would be preferrable.
Thanks in advance for any suggestions.
-Jeremy
TITLE: Package Installation Wizard
Unexpected error occurred.
ADDITIONAL INFORMATION:
Retrieving the COM class factory for component with CLSID {E44847F1-FD8C-4251-B5DA-B04BB22E236E} failed due to the following error: 80040154. (Microsoft.SqlServer.ManagedDTS)
Retrieving the COM class factory for component with CLSID {E44847F1-FD8C-4251-B5DA-B04BB22E236E} failed due to the following error: 80040154. (Microsoft.SqlServer.ManagedDTS)
BUTTONS:
OK

Looks like the SSIS is not corectly installed on the machine. Can you uninstall SQL Server and reinstall it?

HTH,
Ovidiu

|||unfortunately, no. I'm not even sure that would have any affect, as we just installed it an hour before this error, and I saw no point in the install process where it could have gone awry.|||

We're having the exact same issue with a WinForm app deployed via ClickOnce.

What's the deal here?