copyitemActivity VS2010 c#

Hi

I want to copy an item using a workflow in VS. So i've used the copyitemactivity.

In the properties what do i put in the  ListItem and ToListId?

Found this link but cant follow in my application http://social.msdn.microsoft.com/Forums/en-US/sharepointdevelopmentprevious/thread/5b8d8806-4211-4a37-8d45-747fb41997da/