1,升级办法我就不说啦在readme文件中说的很详细啦
2,升级前基本的注意事项(readme文档中提到的)我就不说啦
2,升级前推荐修改/libs/db.php
这个可以参考9.7中修改办法:http://blog.csdn.net/clin003/archive/2007/08/16/1745853.aspx
大致在:202行回车添加代码
$dbcharset='utf8';
mysql_query("SET character_set_connection=$dbcharset, character_set_results=$dbcharset, character_set_client=binary");

这部分添加后的样子是这样的:
if ( ! isset($this->dbh) || ! $this->dbh )
{
$this->connect($this->dbuser, $this->dbpassword, $this->dbhost);
$dbcharset='utf8';
mysql_query("SET character_set_connection=$dbcharset, character_set_results=$dbcharset, character_set_client=binary");
$this->select($this->dbname);
}

这是解决中文文章乱码问题。
—————————-
另外一个问题是:9.8升级后查看文章内容后,在Pligg beta 9 Home » About i0Day »后便显示的文章标题会变成乱码的
这个解决办法目前我就知道一个:
这个问题的解决办法参考自:http://forums.pligg.com/bug-report/8793-chinese-characters-bug.html
打开/libs/html1.php在大致124行找到函数function do_sidebar($var_smarty)使用9.7中的相应函数替换即可。
替换前的9.8的样子是这样的:
function do_sidebar($var_smarty) {
// show the categories in the sidebar
global $db, $dblang, $globals, $the_cats, $navwhere;
// fix for 'undefined index' errors
if(!isset($navwhere['text4'])){$navwhere['text4'] = '';}else{$navwhere['text4'] = htmlentities($navwhere['text4']);}
if(!isset($navwhere['text3'])){$navwhere['text3'] = '';}else{$navwhere['text3'] = htmlentities($navwhere['text3']);}
if(!isset($navwhere['text2'])){$navwhere['text2'] = '';}else{$navwhere['text2'] = htmlentities($navwhere['text2']);}
if(!isset($navwhere['text1'])){$navwhere['text1'] = '';}else{$navwhere['text1'] = htmlentities($navwhere['text1']);}
if(!isset($navwhere['link4'])){$navwhere['link4'] = '';}
if(!isset($navwhere['link3'])){$navwhere['link3'] = '';}
if(!isset($navwhere['link2'])){$navwhere['link2'] = '';}
if(!isset($navwhere['link1'])){$navwhere['link1'] = '';}
$var_smarty->assign('navbar_where', $navwhere);
$var_smarty->assign('body_args', '');
// fix for 'undefined index' errors

$_caching = $var_smarty->cache; // get the current cache settings
$var_smarty->cache = true; // cache has to be on otherwise is_cached will always be false
$var_smarty->cache_lifetime = –1; // lifetime has to be set to something otherwise is_cached will always be false
$thetpl = $var_smarty->get_template_vars('the_template_sidebar_modules') . '/categories.tpl';

// check to see if the category sidebar module is already cached
// if it is, use it

if(isset($_REQUEST['category'])){
$thecat = sanitize($_REQUEST['category'], 3);
}else{
$thecat = '';
}
if ($var_smarty->is_cached($thetpl, 'sidebar|category|'.$thecat)) {
$var_smarty->assign('cat_array', 'x'); // this is needed. sidebar.tpl won't include the category module if cat_array doesnt have some data
}else{
if(isset($_REQUEST['category'])){$thecat = $db->get_var("SELECT category_name FROM " . table_categories . " WHERE `category_safe_name` = '".urlencode(sanitize($_REQUEST['category'], 1))."';");}
if(!empty($_REQUEST['id'])) {
$doing_story=true;
} else {
$doing_story=false;
}
$var_smarty->assign('UrlMethod', urlmethod);

foreach($the_cats as $cat){
if($cat->category_id == $thecat && $cat->category_lang == $dblang && $cat->category_parent == 0)
{
$globals['category_id'] = $cat->category_id;
$globals['category_name'] = $cat->category_name;
}
}
$pos = strrpos($_SERVER["SCRIPT_NAME"], "/");
$script_name = substr($_SERVER["SCRIPT_NAME"], $pos + 1, 100);
$script_name = str_replace(".php", "", $script_name);
include_once('dbtree.php');
$array = tree_to_array(0, table_categories);
$var_smarty->assign('lastspacer', 0);
$var_smarty->assign('cat_array', $array);
// use the 'totals' table now
$published_count = get_story_count('published');
$var_smarty->assign('published_count', $published_count);
$categories = mysql_query("select *, count(*) as count from " . table_links . ", " . table_categories . " where category_lang='$dblang' and category_id=link_category group by link_category ORDER BY category_name ASC");
$categorylist = array();
while ($rows = mysql_fetch_array ($categories, MYSQL_ASSOC))&
nbsp;array_push ($categorylist, $rows);
$var_smarty->assign('categorylist', $categorylist);
$var_smarty->assign('category_url', getmyurl('maincategory'));

}

$var_smarty->cache = $_caching; // set cache back to original value

check_actions('do_sidebar');

return $var_smarty;
}
替换后的为9.7中的对应函数样子是这样的:
function do_sidebar($var_smarty) {
// show the categories in the sidebar
global $db, $dblang, $globals, $the_cats;

$_caching = $var_smarty->cache; // get the current cache settings
$var_smarty->cache = true; // cache has to be on otherwise is_cached will always be false
$var_smarty->cache_lifetime = –1; // lifetime has to be set to something otherwise is_cached will always be false
$thetpl = $var_smarty->get_template_vars('the_template_sidebar_modules') . '/categories.tpl';

// check to see if the category sidebar module is already cached
// if it is, use it

if(isset($_REQUEST['category'])){
$thecat = sanitize($_REQUEST['category'], 3);
}else{
$thecat = '';
}
if ($var_smarty->is_cached($thetpl, 'sidebar|category|'.$thecat)) {
$var_smarty->assign('cat_array', 'x'); // this is needed. sidebar.tpl won't include the category module if cat_array doesnt have some data
}else{
if(isset($_REQUEST['category'])){$thecat = $db->get_var("SELECT category_name FROM " . table_categories . " WHERE `category_safe_name` = '".urlencode(sanitize($_REQUEST['category'], 1))."';");}
if(!empty($_REQUEST['id'])) {
$doing_story=true;
} else {
$doing_story=false;
}
$var_smarty->assign('UrlMethod', urlmethod);

foreach($the_cats as $cat){
if($cat->category_id == $thecat && $cat->category_lang == $dblang && $cat->category_parent == 0)
{
$globals['category_id'] = $cat->category_id;
$globals['category_name'] = $cat->category_name;
}
}
$pos = strrpos($_SERVER["SCRIPT_NAME"], "/");
$script_name = substr($_SERVER["SCRIPT_NAME"], $pos +&nb
sp;1, 100);
$script_name = str_replace(".php", "", $script_name);
include_once('dbtree.php');
$array = tree_to_array(0, table_categories);
$var_smarty->assign('lastspacer', 0);
$var_smarty->assign('cat_array', $array);
// use the 'totals' table now
$published_count = get_story_count('published');
$var_smarty->assign('published_count', $published_count);
$categories = mysql_query("select *, count(*) as count from " . table_links . ", " . table_categories . " where category_lang='$dblang' and category_id=link_category group by link_category ORDER BY category_name ASC");
$categorylist = array();
while ($rows = mysql_fetch_array ($categories, MYSQL_ASSOC)) array_push ($categorylist, $rows);
$var_smarty->assign('categorylist', $categorylist);
$var_smarty->assign('category_url', getmyurl('maincategory'));

}

$var_smarty->cache = $_caching; // set cache back to original value

check_actions('do_sidebar');

return $var_smarty;
}