Ok followed this guide: http://codex.wordpress.org/Login_Trouble and still cant login :(.
Please use this link to see my current versions of stuff: http://sammarchant.co.uk/thames/testinfo.php
Any help would be great,
Cheers,
Sam.
The deactivation of the theme within the Login Troubles page is a good idea, I am going to try that and report back. Thanks guys!