just discovered that There is a separate page for each plurk along with the reponses to it. That's cool 
the plurk IM was giving the link to that page if you plurk from IM 
yea same even i just saw that!
Adheeth
asks
How do u respond to a PLurk from IM?
just type @(the_number_shown_along_the_plurk) and send the plurk. You may read the help section by sending HELP to PLurkBuddy through IM
Adheeth
says
No number is shown for me 