OK...whilst I'm talking to myself..........
On the front page any button / link to do with my forum wouldnt work however I've now resolved the issue.
I've spent most of the evening updating templates so the styles work other than two images that I cant find. I'll take another look tomorrow.
I still cant get access to the admin panel although the software recognises me, my forum profile, etc...so I'm not convinced this is a cookie issue! Possibly something wrong with the redirect?
And finally...I posted a trial add when checking out the functions and whilst the process seemed to work the add didnt go online?
I wont get cross untill tomorrow, but these are the same issues as discussed in MANY previous threads and the lack of answers in most of them is acutely obvious when your trying to resolve issues with the upload