Basically its really annoying most of the time, it does not behave exactly as I would expect it to, and as I have had many years of "Googling" I am very capable of finding things the old way. Very often I find that "Instant" actually takes longer because it gets in the way, and constantly screws with me.
Of course it can be disabled, however I have setup FF not to store any data, therefore the procedure I need to go through to disable "Instant" is as follows. Search for something, then the option magically appears, turn of the option, re-search using the classic method, get the damned results I actually want.
I have "Googled" how to do this, and have not found anything that actually works, until I found this website.
http://www.makeuseof.com/tag/permanentl ... e-suggest/I tried the "Ad-Block Plus" method, didnt work, I then tried the different "Google" page, in my case
http://www.google.co.uk/webhp?complete=0 this works even though "Google Instant" still appears to be on - however it is not. I was expecting a marathon here but I now have the answer, and so do you all. The only reason why I tried the "Ad-Block Plus" method first is because I had already tried another "Google" page.

I am now happy, and dont have to start using another search provider.
Andy