I figured this out already.
first, load the adva_assets plugin, then upload the asset you want to
display
in the view...
<%= asset_image('asset_title') %>
in the application helper (or any other helper that you are loading)
# return asset image tag by searching the asset title
#
def asset_image(asset_title, site = @site, options = {})
begin
(asset = site.assets.find_by_title(asset_title)).image? ?
image_tag( asset.base_url, options) : "<span class='error'>#
{asset_title}: not image?</span>"
rescue
"<span class='error'>Error: asset=#{asset_title} site=#
{
site.name} options=#{options.to_yaml}</span>"
end
end