i like to ask how to put a text over video?
also how to make the buttons from real player to desapear?

Don't know nothin' about RealPlayer, but to put text over video, it would be a better choice to do that with a video editor and and adjust it to your preferences.

The other alternative is to place a text box over your video's place holder, then arrange both or either objects with the Z-order.

The disadvantage of this is that the text woukd be there permanently, and would not appear, disappear or change when you want it to without some carefully planned Special FX, or some Action or Event (WE only).

In Foreign Object Editor > Parameters type Name:wmode Value: transparent.