by Ken Task.
Not allowing re-direct from what I can tell remotely (this without seeing apache access or error logs).
Try this, in your browser (not from an iPad/Adroid tablet), clear cookies/cache. The go directly to:
http://nellpc.org.uk/mypharmacycampus/admin/purgecaches.php
That should throw you back into the web based install.
BTW, is your site using shared hosting with carrierzone.com?
'spirit of sharing', Ken