Right I have found out what it was! It was the bl**dy server! set up a test blog site on a mamp install on my local machine and worked fine, so then transferred the dev site to my local machine and blogs were showing and working straight away!!
Question now is what is it not working or not turned on on our live server! Could anyone give me any pointers on were to look on the server to find out what it is that needs turning on!
Is there anything in the pic below that should be diff?
Just as a note, I think as you have you’re site just about ready to go live. Always clean site side chache and browser, plus remember to flush permissions and flush all sessions.