I got problems with FlatEX and RWY 12

Ok... i used to be good at this.. but i havent done it in like almost a year... so i forgot how to do it....
In FlatEX i click "Create .cfg file"
well... were do i copy that? were is the scenery.cfg of FS9?
And in RWY12... the buttong that says "sync to FS position" or sumtihng like that... it is not working, like it is not letting me click it! It is color grey and the lettes are not black, they are like a darker grey. you know, that look that gives it a "sry, but this feature is disabled" look... plz help!
In FlatEX i click "Create .cfg file"
well... were do i copy that? were is the scenery.cfg of FS9?
And in RWY12... the buttong that says "sync to FS position" or sumtihng like that... it is not working, like it is not letting me click it! It is color grey and the lettes are not black, they are like a darker grey. you know, that look that gives it a "sry, but this feature is disabled" look... plz help!
