好吧，我再试试，十分感谢各位的热心帮助。

安装环境：
win2003+apache2.0.58+php5.1.4+zend3.0.1+mysql5.0.22+lifetype1.0.6

sql_error.log内容：

10-07-2006 15:36:15 ERROR - The following query =
INSERT INTO lt_articles_text
                               (article_id, topic, text, normalized_text, normalized_topic)
                 VALUES( '1', '祝贺您','如果您阅读到这篇文章，这就意味着您注册的博客已经申请成功。','如果您阅读到这篇文章，这就意味着您注册的博客已经申请成功。', '祝贺您')
generated the following error message =
Field 'mangled_topic' doesn't have a default value
10-07-2006 15:57:30 ERROR - The following query =
INSERT INTO lt_articles_text
                               (article_id, topic, text, normalized_text, normalized_topic)
                 VALUES( '2', 'ffffffffffffff','asdfsdfasf[@more@]','asdfsdfasf', 'ffffffffffffff')
generated the following error message =
Field 'mangled_topic' doesn't have a default value
10-07-2006 15:58:48 ERROR - The following query =
INSERT INTO lt_articles_text
                               (article_id, topic, text, normalized_text, normalized_topic)
                 VALUES( '3', 'aaaaaaaaaaaaaaaaaaaaaa','abbbbbbbbbbbbbbbbbbbbbbbbbbbbb[@more@]','abbbbbbbbbbbbbbbbbbbbbbbbbbbbb', 'aaaaaaaaaaaaaaaaaaaaaa')
generated the following error message =
Field 'mangled_topic' doesn't have a default value
10-07-2006 16:07:56 ERROR - The following query =
INSERT INTO lt_articles_text
                               (article_id, topic, text, normalized_text, normalized_topic)
                 VALUES( '4', 'ggggggggggggggggggggggggg','ffffffffffffffffffffffffffffffffffffffff[@more@]ddddddddddddddddddd','ffffffffffffffffffffffffffffffffffffffffddddddddddddddddddd', 'ggggggggggggggggggggggggg')
generated the following error message =
Field 'mangled_topic' doesn't have a default value
10-07-2006 16:18:05 ERROR - The following query =
INSERT INTO lt_articles_text
                               (article_id, topic, text, normalized_text, normalized_topic)
                 VALUES( '5', 'gfdgdsgsdfgdfg','ghdfhdfgsdgsdfg[@more@]gdfghdsfghsdhew','ghdfhdfgsdgsdfggdfghdsfghsdhew', 'gfdgdsgsdfgdfg')
generated the following error message =
Field 'mangled_topic' doesn't have a default value
10-07-2006 16:38:46 ERROR - The following query =
INSERT INTO lt_articles_text
                               (article_id, topic, text, normalized_text, normalized_topic)
                 VALUES( '6', 'fsdgsdf','gdfgdfgdfgfdhgdfhdg[@more@]gdfghdfgsdg','gdfgdfgdfgfdhgdfhdggdfghdfgsdg', 'fsdgsdf')
generated the following error message =
Field 'mangled_topic' doesn't have a default value
10-07-2006 16:47:03 ERROR - The following query =
INSERT INTO lt_articles_text
                               (article_id, topic, text, normalized_text, normalized_topic)
                 VALUES( '7', 'sdfsdgwqertwerr','ffffffffffffffffffffffasdfsadfsdfsadfsdf[@more@]fsdgfsdgvasfasfasfdsf','ffffffffffffffffffffffasdfsadfsdfsadfsdffsdgfsdgvasfasfasfdsf', 'sdfsdgwqertwerr')
generated the following error message =
Field 'mangled_topic' doesn't have a default value

OU，sorry,版主
没说清楚，让你白费心

我的问题是这样的：
我安装的plog列表只显示用户名和日期，以及分类、评论等链接，而发布的blog内容却不能显示，我试着给一个blog发表评论，在评论页里也是不能显示blog内容，而评论的内容却能显示出来。我一连试发了好几个blog,包括纯英文代码的，都不能显示。
还有一个问题是，我安装后，没有用户登录框，好象是单用户版本。
不知是什么原因，这回版主能看明白吗？希望能够得到解答。
先谢了。

我重新发新贴子，也不能显示，而且没有用户登录框，我安装的是1.0.6