Hitman Pro Alert is working perfectly here.
But he never had to go into action ... (I was not infected). Spywareblaster never used, most recommend HitmanPro alert ...
Why not get both? They are certain not to conflict because, unlike HPA, Spywareblaster is not a realtime program. It immunizes and then goes away. (Other programs that include that feature are Spybot and HostsMan.)