You do need an adapter on both ends i believe, dont have that kind of network, although i run xbox wirelessly and works great.
I would read here if I was you, explains it all :)
<a class="postlink" href="http://hubpages.com/hub/How_to_set_up_a_home_network_using_your_powerline" onclick="window.open(this.href);return false;">http://hubpages.com/hub/How_to_set_up_a ... _powerline</a>
and here for kits :
<a class="postlink" href="http://www.broadbandbuyer.co.uk/default_ShopGroup.asp?ShopGroupID=61" onclick="window.open(this.href);return false;">http://www.broadbandbuyer.co.uk/default ... GroupID=61</a>