I have a problem having the non-aqua button clicked

I’m trying to save a file over an existing one. When i suggest clicking the “Replace” button. Does anyone have any suggestions on this one? Any help would be greatly appreciated.

activate application “Adobe Acrobat Professional”
tell application “System Events”
tell process “Acrobat”
delay 1
click menu item “Enable Usage Rights in Adobe Reader…” of menu 1 of menu bar item “Advanced” of menu bar 1
delay 1
keystroke return
delay 1
keystroke return
delay 1
keystroke return
click button “Return” of front window
end tell
end tell

Acrobat Pro is a scriptable application. Is there any reason you can’t do the save with native AS commands instead?

As I do the keystroke returns the dialog boxes show up. I want to simulate the action as if i were doing the mouse clicks and saves.