prediction

is it possible to predict a reaction with instant JChem of chemaxon?

It is possible to process a virtual reaction in Instant JChem. Please see the Chemistry menu.Here is a related video:
http://www.chemaxon.com/library/media/media-instant-jchem/media-instant-jchem-animations/reactor-in-instant-jchem/

There will be some new features in the upcoming 5.5 version, more runtime options and reactant field copying.

Thank you Gyuri for your video.

Now, i would like to now if retro synthese analysis are possible with Instant Jchem -5_4_1?

No retrosynthetic analysis is available at the moment.

Thanks Gyuri for giving an answer, please help me know about the JChem Base cartridge.

To get a general overview (and plenty of details as well) I suggest you to start with reading the documentation:
http://www.chemaxon.com/user_guide_land.html