I think you may have it wrong, I don't believe the people thought that the Tories were the solution (specifically in the last election), but rather that Labour was a worse choice than the Tories were at the time (rightly or wrongly). I don't remember anyone being particularly happy about it at the time whether they voted for or against them, and after the matter some staunch Labour voters I knew came and said to me that "the country wasn't ready yet for what Labour were offering". The painful thing about where politics are now in the UK is that once again the coming election is a rejection of a party (the Tories this time), not an embrace of one (Labour this time). It is a sad state of affairs.