gistfile1.diff

diff --git a/plugins/sfImageHandlerPlugin/lib/helper/sfImageHelper.php b/plugins/sfImageHandlerPlugin/lib/helper/sfImageHelper.php
index d95785d..04845b7 100644
--- a/plugins/sfImageHandlerPlugin/lib/helper/sfImageHelper.php
+++ b/plugins/sfImageHandlerPlugin/lib/helper/sfImageHelper.php
@@ -71,7 +71,7 @@ function sf_image_path($filename, $options = array(), $absolute = false)
   }
   else
   {
-    $parts = explode('_', $filename);
+    $parts = explode('_', strtr($filename, '.', '_'));
     $f = array_pop($parts);
   }