Just came back online after having High fever for last 3 days..
Going through all the posts now and will post a revert on each one ..

On a quick glance i see a lot of unhappy people : I will be checking each issue individually but from the updates i have we have successfully managed to make the forum search work (for this the old forum had to be re-indexed which did put some load on server and hence the DB issues occurred).

I will post an update on each of the issues individually after checking them all in a few hours time.