PRIME Minister Gordon Brown continued his assault on the City yesterday, promising that &ldquo;the banks will pay back the British people&rdquo;.<br /><br />Speaking at the Labour party conference, Brown told delegates to &ldquo;dream big dreams&rdquo; and put behind them the mood of defeatism.<br /><br />But his fight back will be dealt a major blow this morning, when the Sun newspaper backs the Tories on its front page, declaring &ldquo;Labour&rsquo;s Lost It&rdquo;. <br />Brown reiterated his pledge to legislate against bumper bonuses and also revealed that the Post Office is to play a greater role in local banking, a policy dreamed up by Lord Mandelson.<br /><br />But a promise to raise the minimum wage for the next five years met with criticism from CBI deputy director-general John Cridland, who said the plans could undermine the independent Low Pay Commission.<br /><br />Other policies included 250,000 new, low-carbon jobs and a technology investment fund. <br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;