For the Tag Cloud page just open
yoursite/yourtemplate/ tag_cloud.tpl
Find the following
Code:
<span style="font-size: {$tag_size[customer]}pt"><a href="{$tag_url[customer]}">{$tag_name[customer]}</a></span>
Replace with
Code:
<span style="font-size: {$tag_size[customer]}pt"><a href="{$my_base_url}{$my_pligg_base}/search.php?q={$tag_name[customer]}++&sa=Go&sitesearch=http%3A%2F%2F{$my_base_url}{$my_pligg_base}&flav=0002&client=pub-7688534628068296&forid=1&ie=ISO-8859-1&oe=ISO-8859-1&cof=GALT%3A%23008000%3BGL%3A1%3BDIV%3A%23336699%3BVLC%3A663399%3BAH%3Acenter%3BBGC%3AFFFFFF%3BLBGC%3A336699%3BALC%3A0000FF%3BLC%3A0000FF%3BT%3A000000%3BGFNT%3A0000FF%3BGIMP%3A0000FF%3BFORID%3A11&hl=en">{$tag_name[customer]}</a></span>
Once again, don't forget to change your Google publisher ID