I would like to know how to do coding for orientation and text sliding up/down of mobile app created with flash professional.
The Flash for Mobile orientation is in the apps XML descriptor. It has always been relatively the same from the beginning. Here's a simple article on it:
As for text sliding up or down, in Flash it's always going to be the same. Position it x/y and move it along the same x/y, the same as you've always done. Nothing is different from original Flash regarding the stage as far as mobile goes.