Try enabling the FTP layer first.
You can find a detailed explication how to do this on this page:
http://www.jfoobar.org/blog/258-quickguide-the-joomla-ftp-layer.html
Then try installing the component with the standard joomla installer.
If this doesnt work you can always try to install the component from a directory.
Read how to do it on this page:
http://help.joomla.org/content/view/1685/153/
Go to the text: "To Install a New Component From a Directory" and read underneath.
If you cant get it to work i can even install it for you on your website. Just send me a private message with a temporairy superadmin login.
in that case, dont post it on the forum! send me a private msg!
Greetings Kim