Hi - two questions:
1) i purchased jaikoz and have v1.4. Can i upgrade to latest version with my license? Do i have to find my key or will it update automatically
Yes unlike some other products jaikoz gives you a free upgrade for life. If you have the older version of Jaikoz still installed you just need to search for your license.jai file and keep this aside for when you install the new version. After you have installed the new version select File/install Full License menu item to install a ful license.
2) i've just gotten some mp4a files. Is this supported and if not is the support coming?
It is not supported yet but it definitently will be