Could you add some code for me to style the Activity commenting

HI All,

My client has asked if i can make the Group activity streams commenting more like facebook and has sent me this page to give the code needed. This level of coding is beyond me and i was hoping someone could implement it for me who would find it a simple process. Link below.

If you could help it would save my life!!

Great work guys, dont know what i would do without you.