Yep cross purposes...
There is a big difference between a system restore using the disks provided and reverting to the previous restore point. Tho in this instance I am not so sure a restore point will be so useful if it is a security issue as I do not know off hand if the security config will also be restored. As far as I recall restore points are more registry related and only recover those files changed. But again I dont use this enough to know.
Cheers