1.place the cursor in the script where u want checkpoint 
and right lick in there opton is there checkpoint.
2.go after recording script u ma go active screen area 
there snopshoots what ever u record in u r application that 
images will be there put u r mouse point to that image and 
right click there also u will get checkpoint option
3.insert menu---checkpoint
 i hope this is correct answere

IN TWO WAYS,
while recording the application, and also after completion 
of recording by using the ACTIVE SCREEN we can add 
checkpoints.

check points can be added in three ways. they are as follows

1) while recording (insert > check point)
2) using the active screen
3) while wiring the scripts if we want ti insert a check 
point there itself then we have to right click at the point 
where we have to insert the check point (right click > 
insert checkpoint)