These are the available variables you may use in your template files.
If you have ideas / suggestions for more, just let me know.

include/template/
	header.tmpl
		{
		$logo
		$searchbox
		$navigation
		$date
		$imagedir
		$siteslogan
		}
	block.tmpl
		{
		$heading
		$content
		$date
		$imagedir
		}
	summary.tmpl
		{
		$heading
		$author
		$address
		$topic
		$icon
		$date
		$content
		$comments
		$views
		$modified
		$link
		$imagedir
		}
	story.tmpl
		{
		$heading
		$author
		$address
		$topic
		$icon
		$date
		$content
		$link
		$imagedir
		}
	comment.tmpl
		{
		$author
		$address
		$date
		$content
		$reply
		$imagedir
		}
	main.tmpl
		{
		$heading
		$content
		$imagedir
		}
	footer.tmpl
		{
		$sitename
		$siteslogan
		$imagedir
		}