This page is the central place where you can see almost all of Sadish’s themes in one place and you can also download them from here.
You have to have the footer links intact when using the theme for free.
If you wish to remove the links from the footer, you should make a payment of 25 USD at the donation page.
These themes can be used on any self-hosted WordPress Installations. There are lots of web hosting companies available on net who offer hosting packages at cheaper rates.