What happened for you information. The new sites I am working on will also require registration to take advantage of their facilities but it will
NOT require you to register again if you are already registered on TWS.
If you do register on any of the sister sites you will also be registered on TWS and the other sister sites too. You can login at any site and be automatically logged in to all the others so you can jump between the suite of sites at will.
This I thought would make life a lot easier.
However during the process of synchronisation between TWS and the first site I am going to release, I lost 200 registered users. :-[ No problem I thought. Like a good administrator I made a complete backup of the database before I started work just in case something like this happened. Well would you know it, the backup did not complete correctly and I could not recover the lost data. :'(
So I contacted the parent hosting company and they offer to recover data from their own backups (at a cost), so I paid the money and waited....FIVE DAYS!!! and still nothing. I cannot believe it takes this long to find the backup required and restore either the database of the whole site if needed.
So I called them this morning and guess what? They told me they cannot restore backups older than 36 hours...so why the hell did no one tell me days ago... >

So I have gone through the whole database and it seemed that most of the user data I need to restore users logins are also held in the forum database. With a bit of work I reconstructed the data that was lost and rebuilt the database.