My answer to deleted with another question due to the server breakdown in end of Jan 2014. So this is the way I can propose. Use an advanced theme and override function q_item_title($q_item) like that:
/* Question Content below Question Title */
function q_item_title($q_item) {
$blockwordspreg = qa_get_block_words_preg();
$maxlength = qa_opt('mouseover_content_max_len');
$result=qa_db_query_sub('SELECT postid, content, format FROM ^posts WHERE postid IN (#)', $q_item['raw']['postid']);
$postinfo=qa_db_read_all_assoc($result, 'postid');
$thispost=@$postinfo[$q_item['raw']['postid']];
$text = qa_viewer_text($thispost['content'], $thispost['format'], array('blockwordspreg' => $blockwordspreg));
$text = strip_tags($text); // removes all img, p, etc. tags
$text = qa_shorten_string_line($text, $maxlength);
$q_preview = '<p>'.qa_html($text).'</p>'; // for full question content use: $thispost['content']
$this->output(
'<div class="qa-q-item-title">
<a href="'.$q_item['url'].'">'.$q_item['title'].'</a>'
.$q_preview.
'</div>'
);
}
This gives you a preview text. If you want the img tags and other tags to appear, remove strip_tags.
Hope that helps,
Kai