Sider select/upload image, will not work

I am or was using Nirvana and when I click on select/upload image, it just bumps me back up to the top of the presentation page options.
I will give up soon and trey another theme, but I really like Nirvana when it worked – whole page trashed now due to supid mistake, rebuilding now – will try Nirvana again when problem is fixed

I can offer you admin access to my page if you want see the fault first hand, just email me with security in mind !!