So I basically want to is have a function that checks wheather or wheather not the viewer has the application installed, and pretty much do "if the viwer has the application installed , run my function  .. if the viewer does not have the application installed say "you must install the application before using it" ... and i want to do it on the profile surface. 

Hi,

Check out this thread below and see if it helps answer your question.

http://developer.myspace.com/Community/forums/p/2014/9011.aspx#9011