My Wordpress London Creative does not allow Simple Page Specific Sidebar plugin does not work – the sidebars get created but do not show on page
also a tip for reducing font in nav menu drop down
RE: plugins if the demo does not advertise the plugins then they don’t have the responsibility to make them work. There are several sidebar plugins so maybe try some others.
RE: the font size – the main nav and sub nav are controlled by the the same rule so if you want to JUST make the sub nav smaller then you will need to create custom CSS for just them