Python GUI Tkinter Button arrangement

[Ganesh Kumar]

Hi..

I am new to python , i have creating one application user
agreement..using Tkinter, The Content

of the agreement will reading one file...Agree button will click means
enable next button. And activate script,

Quit button for exit the program,, Dis agree means one warning message
will show up..

all are working but one buttons are top of the screen. i want button
in bottom of the frame plz. help me..

this my source code


Source Code

http://pastebin.com/Lm5teAtS

Thanks in Advance
-Ganesh.