Here's a few screenshots.
The first shows how to undo the immunization. Press the undo button (circled red). This may take a few minutes.
The second shows how to get into the advanced settings. Do that if you haven't already. You have to "OK" your way into there.
The third shows where in the advanced settings to deal with the teatimer and other resident. (Tools>resident, where I've red-arrowed). Go there, and make sure that the two boxes (boxed in red) are unticked. (I think you may have been in another area - maybe "system startup" when you looked.)
Once all that is done, you can uninstall the program via the control panel, or follow Safesurf's link for directions.
I quite like the motivation of the Spybot author, and feel it is probably a useful application, still under development, but in all truth, I think the free version of
MBAM used as a demand scanner probably beats it. Hands down. A view shared by others smarter than me also.