The way to fix this is to make it so when a user selects a style in the quick dropdown menu on all pages, their selection would be saved in their user info. Otherwise it is just stored with a cookie. Regardless of whether or not someone has say "Default" or "Style A" selected in their UserCP, the hack will not show anything that they select in the dropdown menu. I think making the dropdown menu change the users style the same way it does in the UserCP is the next step for this hack, as that seems to be the problem.
Please fix.