@dran2013 Have you contacted theme author? Is the login hardcoded in sidebar? Usually you can override those by adding your own widgets to sidebar.
download a login widget plugin from wp.org
thanks to you both for the advice! Yes, I have just contacted the theme developer and awaiting response. I used the buddypress login widget in the sidebar. It shows up in the Safari browser but not Firefox or IE. If there is no fix, I will download a login widget, thanks again!