How to deal with Iran?

The Australian: Leanne Piggott: The sensible option on Iran [January 19, 2006]

The article above seems to have a controversial take on how to deal with the Iranian problem. In short, Ms Piggott (whose general political views I am not familiar with) thinks the West should support an Iranian opposition movement which most Western governments still list as a terrorist organisation. She thinks that they should not be counted as such, because they have only killed government officials, and have renounced violence since 2001. Then we just have to wait for the government to be overthrown internally.

Problem is, if the government is as bad as she notes it has been in the past (with 120,000 people executed since 1980!), will an internal uprising ever happen? Just how many years can the rest of the world afford to wait?