无法置顶，置顶后就出错！

我是刚安装好的论坛，又将它从AC转到SQL2000，一直也没用过置顶，今天刚置顶一篇贴子，完成后自动转入该贴所在版块，出错，就再也无法进入该贴所在的版块了，如果设置全站置顶，那么就全站的版块都无法进入，但能在首页可以进入最后发布的贴，就是不能进入版块，只有删了该贴又正常了，这是怎么了？求助啊。。。。。。。。急！！！！！！！
2003系统，IIS，sql2000,按本站的帮助设置权限


出错如下：
Server Error in '/bbs' Application. Runtime Error Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".

<!-- Web.Config Configuration File --><configuration>    <system.web>        <customErrors mode="Off"/>    </system.web></configuration>

Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.

<!-- Web.Config Configuration File --><configuration>    <system.web>        <customErrors mode="RemoteOnly" defaultRedirect="mycustompage.htm"/>    </system.web></configuration>