You should be able to read Georgian without doing anything. Can you see this web page correctly?
To type Georgian, go to system preferences/language & text/input sources and check the box for Georgian, plus the box for Show Input Menu in Menu Bar, plus the box for Keyboard Viewer. Then select Georgian in the "flag" menu at the top right of your screen and type. Select Keyboard Viewer from the same menu to see which key does what.
My last question is: will it be any problems to recognize the text printed in Georgian language from e-mail?
(i.e. if I receive mail printed in Georgian)
Normally there should be no problems reading email ( unless perhaps the sender is using very old software with some kind of non-standard encoding).