I answered you here > http://en.forums.wordpress.com/topic/referrals-x?replies=4#post-585682
There is no FTP access to wordpress.com free hosted blogs and we cannot upload any individual plugins into them Before you go any further please read this entry very carefully so your comprehend the differences between free hoste wordpress.COM blogs and wordpress.ORG free software installs for self hosting. http://support.wordpress.com/com-vs-org/
Also note that the normal rurn around time to get answers to questions on any blogging support forum is 12 - 24 hours. We do better than that here where everyone posting is of course seeking help.