I am not sure what you want either, but does this help you?
Code:
$file2 = file_get_contents($indexu->config['plugin_path'] .'/plugin_name/template/file2.html');
$file3 = file_get_contents($indexu->config['plugin_path'] .'/plugin_name/template/file3.html');
$tpl->assign("file2",$file2);
$tpl->assign("file3",$file3);
$plug->SetHtmlHook(whatever_hook_you_want, file_get_contents($indexu->config['plugin_path'] .'/plugin_name/template/file1.html.html'));
Hopefully you can figure that mess that I wrote. I will have more time to help in the morning when I get off work.
Regards
mp
For questions related to any mods I developed, please contact me by pm or email at webmaster [at] scriptdragon [dot] com