Hello is have a gr8 problem ...m geting ofline ims frm mah frns in yhaoo messenger which hv certain links !!?

in dem ...n i cliked on of dem n now my pc has got virus suddenly my yahoo msges changes 2 sumtin else ...m confused plzzzzzzzzz help me ....how do i delete d new status messages ...n how do i get rid of virus !!??