There is no FTP access to our free hosted WordPress.com blogs and we cannot install plugins. If you must have plugins then you have to hire a web host and set up your own WordPress.org install. Read the comparison here please > http://support.wordpress.com/com-vs-org/
I asked you to read this > http://support.wordpress.com/com-vs-org/
You did not read it before – read it now and absorb that fact that what I posted is correct. To have plugins you must hire a web host and set up your own WordPress>ORG install.