Last Commented

Hello to everyone. I need your help, please.

I want a script which will get the last 5 post and print to my screen.

But i want the last 5 post who have reply, also i don’t want duplicates of post, e.g. i have answer to times in a post with name “post1”

i don’t want to look like like this:
post1
post1
post2
post3
post4

but:

post1
post2
post3
post4
post5

the information which i want to print is:
the_title()
the_time()
the_content()
post reply

thanks for any help