I think I will have to face up soon to moving to a new server which is already set up with a new site name/address, as the database is growing by the day and will all have to be downloaded to my PC then uploaded to the new server ... plus a copy of the phpBB software which I have to master during the process!!
It is entirely possible that it will get in a mess but the saving grace is that this version will remain accessible, it will just mean up to a day of 'no postings' while I do the transfer to avoid anything being lost, and if I don't succeed we can resume on here.
More news on this when I have summoned up enough courage to give it a try .....