Noted that xml format can now handle images.

lang/en_utf8/help/quiz/export.html

@@ -43,7 +43,8 @@ When was Ulysses S. Grant born?{#1822}
 <ul>
 <p>This Moodle specific format exports quiz questions in a simple XML format. They
 can then be imported into another quiz category or used in some other process such as
-an XSLT transformation</p>
+an XSLT transformation. The XML format will export images attached to questions (encoded
+base64).</p>
 </ul>
 
 <p><b>IMS QTI 2.0</b></p>

lang/en_utf8/help/quiz/import.html

@@ -163,7 +163,9 @@ versions of Examview are not supported.</p>
 <ul>
 <p>This Moodle specific format imports quiz questions that have previously been
 exported in the same format. The format is straightforward and is best demonstrated
-by exporting a category in the Moodle XML format.</p>
+by exporting a category in the Moodle XML format. The XML format is capabable of 
+importing image files.
+</p>
 </ul>
 
 <p>More formats are yet to come, including WebCT, IMS QTI and whatever else