I've edited the SMF Ads mod to to get it working in my themis theme. Everything is working fine except the index.template.php file coz i could'nt find <body> and dont know which </td> should i add the codes. Tried to modify and get it working few times but doesn't work. Can someone help me about it ?
I've attached the index.template.php file here ....
Thanks 
the body is here
<body style="margin-left: 20px; margin-right: 20px;"><table width="100%" align="center" cellpadding="0" cellspacing="0">';
for the other thing, you might want to try to put it somewhere around here
" </form></td></tr></table>';"
on a custom theme, you will just have to play around till you find the right spot to put it.
this ad is just for the "Display ads in the welcome user area". so if your not even going to use that option, then you dont really need to place the ad code there
same goes for the helios theme.
although, when i get around to it, i plan on writing an add on mod for the helios theme to edit the template files (but please dont expect that to be either today or tomorrow..)