I tried the following:
Made a fresh install of the server (SME Server 7.0rc1)
yum localinstall smeserver-remoteuseraccess-1.0-10.noarch.rpm
signal-event post-upgrade
signal-event reboot
No error messages.
I did also refresh the browser.
Unfortunately i did not get me the "Chroot FTP users" menu
Somehow a new problem arrived, now when accessing via firefox I get a certificate error something like: “Same serial number as another certificate from the same authority”
It is still possible to access via Internet Explorer.