Looks like the public only find the new Tory TV ads useful for identifying the people they plan not to vote for:

The federal Liberals had the support of 40 per cent of respondents in a new poll — virtually the same level of backing they received in rolling to their majority government in 2000. The Leger Marketing survey, conducted Sept. 6-11, pegged Conservative support at 24 per cent, while the NDP stood at 15 per cent and the Bloc Quebecois at 13 per cent. The numbers were reached after distribution of the 20 per cent of respondents who were undecided.