Dear Nick,
Thanks for the updates anyway but I think I have somehow resolved It as the system started working after a system reboot. I am not sure why but it seems after you change the Max Upload settings etc although it shows in the php ini file it may be prudent that people reboot their server. I turned the machine off for another reason and later down the line when I tried using a new install of Joomla on another Domain name it worked so I went back to the other installs and then tried installing CB again and this time it worked flawlessly. On deep thought the only variable that had been introduced between the non-install period and the now able-to-install period was the system reboot:
Probably some cache timeout thing (I do not think the caching has to do with Joomla as mine is set to 15 minutes only and this whole scenario lasted two days) within the WAMP setup or something.
Anyway, it is working now and can put that as a lessoned learned.
Thanks and do have a pleasant day:
Peter