What a cute site! I looked at all three of the links that you posted and the login form looks fine. What exactly is the issue you’re having?
also, in that /user/ page, when logged in, you can’t log out. So far I have checked, only in that page. There has to be something wrong, but I can’t figure out what.
Have you done a plugin conflict test yet? One simple solution would be to have a standalone login page instead of embedding the login form into so many areas of the site.
But the plugin works very well. The only conflict is on this page, only. Do you really reckon I need to do it?
I am just trying to help. It is, of course, your choice. Personally, though, the page looks very busy already and the login form sort of clutters it. Having a link to a standalone login page instead of the login form itself may solve yr problem and look better, too.