Hello, I'm currently running: Artio Book-IT Paid Version: 1.5.7 - with Joomla 2.5
We are happy with it,

I'm planing to upgrade our joomla to 3 but I know I need to buy the Book-it Paid new version to run on Joomla 3

My Question is: Is that possible to move all the reservations to the new version "data migration", so no body will lost his booking.

Thanks,

Hello,

upgrade from Book it!1 to Book it!2 is for free, if your product license is still valid.
As regards your question:
The transition from B1 to B2 was smooth in the last time, so I think you couldn´t loose all your settings. However there are still more differences between B1 and B2 so I can´t guarantee you that everything will go well. Of course we recommend to make an backup before the upgrading.