Green Go-button
Forgot I had a green go-button too.
Use the same techinque.
Edit
buttons/go_image.tpl
Code:
{if $usertype == "C"}src="{if $full_url}{$http_host}{$ImagesDir|replace:"..":""}{else}{$ImagesDir}{/if}/go.gif" width="27" height="14" border="0" align="top"{else}src="{if $full_url}{$http_host}{$ImagesDir|replace:"..":""}{else}{$ImagesDir}{/if}/blue_go.gif" width="27" height="14" border="0" align="top"{/if}