Well, then you need to rethink it.
Scott Brown will probably vote the conservative line, oh, 60-70% of the time, as opposed to Martha Coakley, who would have voted the conservative line 0% of the time. A guy who votes for conservative bills, etc. 60-70% of the time is a guy who helps the conservative cause 60-70% of the time, as opposed to someone who would do so 0% of the time. I honestly don't understand why people on here have such a mental block about this.
Or, not everybody is as gung-ho about this "Scott Brown Republican" as you are. That seems more likely, doesn't it? People can have differing opinions. It's really not that hard to understand.